eChapters

Models Definitions

In social science research a model is a tentative description of what a social process, say the communication process or a system might be like. It is atool of explanation and analyses, very often in a diagrammatic form, to show how the various elements of a situation being studied relate to each other.

What is a Model?

3.1. Communication

Leagans (1961) refers as process by which two or more people exchange ideas, facts, feelings or impressions in ways that each gains a common understanding of meaning, intent and use of messages.

Communis is Latin word - meaning common.

Act of getting a sender and a receiver tuned together for a particular message, or a series of message.

Winfield (1957) refers as whole learning process; encompasses

º Teacher - message or material to be taught

Aristotle, Shannon and Weaver, Schramm, Berlo, Westly and Maclean, Leagan, Rogers and Shoemaker, Littererls model and Dance’s Helical Model-Elements of communication-communication barriers

Introduction

Models are symbolic representation of structures objects or operation. They can be used to show the size shape or relationship of various parts or components of an object or process. It helps to explain the working of a system. A model helps to get a whole idea of the system.

Model help to illustrate, predict and explain the concept

They can be structural or process oriented

Make us to understand the way how to interpret the process

The communication module is a device which is used to control the communication between the stations. This chapter explores the different communication modules and their specifications.

5.1 WiFi

ESP8266 WiFi Module is a WiFi serial transceiver module. This chip has a full TCP/IP protocol stack with the computational power onboard. This makes the board simple to use as Wi-Fi connection board. The specification of this board includes, 32-pin QFN package, Integrated RF switch, Integrated RISC processor. It has on-chip memory with external memory interfaces, integrated MAC/baseband processors, Quality of Service management, on chip regulator, Integrated WEP, TKIP, AES, and WAPI engines, 11 b/g/n. It has integrated TCP/IP protocol stack and Integrated PLLs, regulators, DCXO and power management units. It has +19.5dBm output power in 802.11b mode and Power down leakage current of <10uA

5.2 Bluetooth

Bluetooth is a wireless protocol. The recent introduction of Bluetooth with Low Energy extension is also as iBeacon. The advantage of BLE4.0 standard includes the low power consumption, which makes it a better option to be used in smart phones. This facilitates the setup of a mesh network of Bluetooth devices, with lower latency and higher range respect to standard Bluetooth.

This is a SMD BLE module based on TI cc2541 chip. It has low cost, small and easy to use. The preloaded firmware allows to build BLE communications with AT command. It supports communication with iPhone, iPad (iOS 5.0 or greater) and Android 4.3 or greater. It works on frequency: 2.4 GHz ISM band and modulation method is GFSK (Gaussian Frequency Shift Keying). It has transmission power: - DBM, 23-6 DBM, 0 DBM, 6 DBM, can be modified by the AT command. It works on baud rate 9600bps. It can operate on temperature range -40 ~ 125°C.

Another interesting board is the HC-05 Bluetooth module. Specifications of the works Master/Slave configurations. It operates on frequency of 2.4GHz ISM band with Modulation GFSK(Gaussian Frequency Shift Keying).

Theory

Communication word comes from Latin ‘Communis’- Common
Communication: The communication is the process of human interaction in which one person communicates a message/idea to another person. 
Diffusion: It is the process by which an innovation/new idea/new technique spreads. 
According to Rogers (1983) ‘Communication is the process by which the message is transmitted from the source to the receiver’.

Communication word comes from Latin ‘Communis’ - Common

Communication: The communication is the process of human interaction in

which one person communicates a message/idea to another person.

Diffusion: It is the process by which an innovation/new idea/new technique

spreads.

According to Rogers (1983) ‘Communication is the process by which the

message is transmitted from the source to the receiver’.

Function of communication

1. Informative

2. Instructive/Command

3. Influence/Persuasive

4. Integrative

Communicator: Person who starts the process of communication OR he is the

sender of message

Message: It is the information the communicator wishes his audience to

receive, understand and act upon

Encoding: It is a process of interpreting the message

Decoding: It is a process of receiving the message

 Objectives
• Understand the meaning of the communication process.
• Learn the various types of communication.
• Explore different models of communication.
• Analyze how communication flows in different contexts.
Meaning of Communication Process
The communication process refers to the systematic steps through which a message is conveyed from a sender to a receiver. It involves the transmission of information through a medium, with feedback confirming whether the message has been received and understood correctly.
Elements of the Communication Process
The communication process consists of the following elements:
• Sender: The person or entity initiating the message.
• Message: The content or information to be communicated.
• Encoding: The process of converting the message into symbols, language, or signals that can be understood by the receiver.
• Medium/Channel: The pathway through which the message is transmitted (e.g., face-to-face, email, phone).
• Receiver: The person or entity for whom the message is intended.
• Decoding: The process by which the receiver interprets and understands the message.
• Feedback: The response of the receiver that indicates whether the message was understood

Extension organizations are highly sociable organizations with a definite purpose of using the grass root principle and democratic leadership in bringing transience in the organization and society. In this direction the communication styles most suited for these extension functionaries in bringing these transitions need to be studied and understood and developed for effective functioning of these organizations as nucleus of change in transforming societies for development

Learning to identify the different communication styles - and recognizing which one we use most often in our daily interactions with friends, family and colleagues - is essential if we want to develop effective, assertive communication skills. But how can we tell the difference between the styles, and is there a time and place for each one in certain situations?

Being assertive means respecting yourself and other people. It is the ability to clearly express your thoughts and feelings through open, honest and direct communication.

Becoming more assertive does not mean that you will always get what you want - but, it can help you achieve a compromise. And even if you don’t get the outcome you want, you will have the satisfaction of knowing that you handled the situation well, and that there are no ill feelings between you and the other person or people involved in the discussion.

Introduction
Communication is fundamental to organizational success, interpersonal relationships, and information dissemination. In the modern, highly interconnected world, understanding communication techniques and networks is essential for effective collaboration and decision-making. This chapter will delve into various communication techniques and explore communication networks’ types and roles within organizations.
Objectives
• To provide an overview of communication techniques.
• To examine types of communication networks and their applications in organizational settings.
• To illustrate how communication techniques and networks impact organizational effectiveness.
Section 1: Communication Techniques
Communication techniques encompass the methods used to transmit information from one person or group to another. These techniques can vary based on the mode of communication, the complexity of the information, and the audience. Effective communication techniques enhance clarity, reduce misunderstandings, and foster better relationships.
Verbal Communication
Verbal communication is the use of spoken words to convey messages. It is direct and often allows for immediate feedback, making it one of the most effective communication forms.

Sending a message from one place to another place, which are physically separated from each other, is called Communication. The Communication Engineering or Communication Technology deals with the design and development of engineering systems to transmit information from its source, and at the same time, to receive the same information at a remote destination with reliability, accuracy and quality.

The communication which is the core of the Communication Mix plays an important role in promoting the product to the outside world and especially to the target market. In the marketing of rural products, application of latest, innovative and enhanced technologies is crucial for effective communication with urban consumers. This also helps in conveying the features of rural products. The adoption of the latest technologies ensures the economic well-being of the rural marketers by increasing the reach of the products and in creating awareness about the product. The technology helps in faster dissemination of the rural product information to the consumer.

Origin

The world ‘Communication’ comes from the Latin word ‘communis’, meaning common. This implies that when we communicate, we are trying to establish ‘Commonality’ with someone through a message. Communication, then, is a conscious attempt to establish commonality over some idea, fact, feelings and the like, with others. In essence, it is a process of getting a source and a receiver tuned together for a particular message or a series of messages.

Origin

The term communication stems from the Latin word “Communis” meaning “common”. This implies that when we communicate, we are trying to establish ‘commonality’ with someone through a message. Communication, then, is a conscious attempt to establish ce, it is a process of getting a source and a receiver tuned together for a particular message or a series of message.

Definitions of communication

2.1 Communication comes from word

‘Communi’ means common. To establish commonness between two individuals is communication. Communication is to share information, idea, and attitude or tuned together for a particular message.

1.0. Objectives

• To describe communication, its type and process
• To illustrate the methods to make listening effectively
• To impart knowledge of effective communication skills
• To impart tips to improve their verbal and non-verbal communication

1.1 Meaning

The English word 'communication' is derived from the Latin communis, which means common sense. In other words, it is the transmission and interaction of facts, ideas, opinions, feelings, or attitudes. Communication is a two-way process that involves transferring info rmation or messages from one person or group to another. This process goes on and includes a minimum of one sender and receiver to pass on the messages. These messages can either be any ideas, imagination, emotions, or thoughts. Communication is a Latin word that means "to share".

Introduction

In the animal kingdom, there are many animals with a concrete social system in their ranks. Animals like lions, wolves, and apes have complex social systems in their lives. And what is the most important thing in a functional social system? It’s communication! Communication is the most important function in any social system, which binds that system.

And what organism has the most complex social system? It’s humans. Thus, the human social system requires a very complex communication system.

Community Development concepts

The United Nations defines community development as “a process where community members come together to take collective action and generate solutions to common problems. It is a broad term given to the practices of civic leaders, activists, involved citizens and professionals to improve various aspects of communities, typically aiming to build stronger and more resilient local communities.

Community development is a process where community members come together to take collective action and generate solutions to common problems. Community wellbeing (economic, social, environmental and cultural) often evolves from this type of collective action being taken at a grassroots level.

India has been a welfare country since Independence and the primary objective of all governmental and non-governmental endeavors has been the welfare of its millions people. The policies and programmes should be designed with the aim of alleviation of rural poverty which has been one of the primary objectives of planned development in India. It was realized from pre-independent rural development efforts, that a sustainable strategy of poverty alleviation must be based on increasing the productive employment opportunities in the process of growth itself. Elimination of poverty, ignorance, diseases and inequality of opportunities and providing a better and higher quality of life were the basic premises upon which all the plans and blue-prints of development should built.

Rural development implies both the economic betterment of people as well as greater social transformation. In order to provide the rural people with better prospects for economic development, increased participation of people in the rural development programmes, decentralization of planning, better enforcement of land reforms, greater access to credit, etc proper planning is envisaged.

Initially, main thrust for development was laid on agriculture industry, communication, education, health and allied sectors but later on it was realized that accelerated development can be achieved only if governmental efforts are adequately supplemented with direct and indirect involvement of people at the grass root level.

Community

1. A community is a group of people, who live in a geographical area and have an interest in each other for the purpose of making a living. It is a form of social organization existing between the family and state.
2. The people with common interests living in a particular area
3. An interacting population of various kinds of individuals (as species) in a common location
4. A group of people with a common characteristic or interest living together within a larger society

Introduction

What is community development?

Community development refers to the process of bringing community people together after identifying issues related to them and taking a collective action. Community development empowers residents and builds stronger, more integrated communities. Community development is an all-encompassing approach based on the ideas of empowerment, human rights, inclusiveness, social justice, self-determination, and collective action (Kenny, 2007).

COMMUNITY DEVELOPMENT (CD)

Meaning of Community Development

Community development is an exclusive term. It is used frequently to encompash every efforts towards the advance of community interest.

Community

A community is a group of people who live in a particular geographical area and have an interest on each other and have a purpose of making a living.

Development

It means growth or maturation. It is gradual and sequencial phases of changes. Example: Life from child to death

Definition of Community Development

1. It is bringing forth the potential abilities and qualities of a group of people who live together in a common territory or region and who have an interdependent relationship with each other.

2. Community Development is a continuous process of social action by which the people of community do the following things.

(a)   Define their common and group needs.

(b)   Organize themselves formally and informally for democratic planning and action.

(c)   Make group and individual plans to meet their need and solve their problems.

(d)   Execute their plans with maximum reliance upon their own resources.

(e)   Supplement their resources from outside community when necessary with services and materials.

3. Carl Taylor’s Definition

Community Development is a method by which people in villages are involved in helping to improve their own economy through their own effort. Thereby, they are effective working groups in the programme or national development.

ABSTRACT

Information and Communication Technologies (ICTs) are for everyone and that does not mean for urban or rural communities. Recent developments in the fields of information and communication technology are indeed revolutionary in nature. By definition, Information and Communication Technologies (ICTs) are a diverse set of technological tools and resources to create, disseminate, store, bring value-addition and manage information. Knowledge thereby becomes the fundamental resource for all economic and developmental activities in the knowledge society, of which rural poor form an equal part. The process of synthesis of knowledge possessed across communities with the global pool of knowledge and with the scope for further enrichment provides the genesis for information sharing.

The analysis of community mobilization in natural farming requires a systematic framework that captures the complex dynamics of agricultural transformation, social change, and community empowerment. This framework serves as a lens through which to examine successful cases of natural farming adoption while identifying the critical factors that enable communities to transition from conventional agriculture to sustainable practices. Understanding these dynamics is essential for replicating successful models and scaling natural farming initiatives across diverse contexts and geographies. Contextual analysis forms the foundation of any case study framework, requiring comprehensive understanding of the social, economic, environmental, and political conditions that influence community receptivity to natural farming practices. This includes examination of agricultural history, farming traditions, economic pressures, environmental challenges, and existing social structures that shape how communities respond to new agricultural app

The transformation of communities through collective action requires systematic approaches that can navigate the complexities of human behaviour, social structures, and environmental contexts. Community mobilization, while grounded in universal principles of participation and empowerment, manifests differently across various settings and circumstances, necessitating flexible yet structured processes that can adapt to local conditions while maintaining effectiveness. This chapter examines the intricate processes and diverse models that guide community mobilization efforts, with particular attention to rural contexts where unique challenges and opportunities shape the mobilization landscape

ABSTRACT

The role of community radio has been conceptualized as an important and powerful tool for informing, educating, entertaining and influencing the masses. Community Radio Station at KVK, Barh, Patna has brought about useful contributions to the farmers of surrounding villages and broadcasting different programmes related to agriculture, health, hygiene, nutrition and entertainment in the local language. Present study was carried out to see the impact of organic farming related talks. We found it a very effective tool to communicate with small and marginal farmers of surrounding villages for delivering useful information related with agriculture and organic farming.

Key words: Community radio, farmer, villages, organic farming information

The importance of science and technology (S&T) to rural societies has long been recognized. Despite the significant advancements in S&T in India since 1947, there remains an urgent need to deliver these advancements to the most underserved populations, enabling them to meet the challenges of an increasingly technologically sophisticated world. Technological progress continues to generate new methods of communication and information management, profoundly impacting society. These advancements offer unprecedented opportunities and challenges for scientific endeavors.

While science possesses a universal character, its application is influenced by local customs and values, especially in rural areas where behavior patterns and practices are deeply rooted in traditional beliefs and superstitions. These are not easily displaced by modern scientific approaches. Therefore, S&T policies for rural development must consider the local environment to effectively deliver the benefits of S&T to rural societies. This consideration is crucial for the management of rural natural resources and the environment.

Introduction

The concept of communication for development emerged with the Modernization theory, which developed its roots after World War II. Wilbur Schramm and Daniel Lerner, the two major proponents of this theory opined that the major obstacle to development was the psychology of the undeveloped citizens. The communication models under modernization paradigm observed communication process as the transfer of message from sender to receiver (Lasswell, 1948). It was found that communication theories like two step-flow, diffusion theory, or the early extension approaches were quite harmonious with the top-down modernization theory. After the Modernization paradigm, an another theory of communication for development emerged named as Dependency theory. Dependency theorist like Jean Servaes (1996) criticized the broadcasting and other mass-media systems as they tended to support modernization and were anti-development; also they were inclined to promote the political agenda. Solution to underdevelopment of third world countries require major changes in media structure that were dominated by commercial principles & foreign interests into media structures which are self-reliant and community oriented (Servaes, 2002). In 1970s scholars such as Paulo Freire and Nora C. Quebral started pleading in favour of bottom up development theories which led to evolution of a new development paradigm called the multiplicity paradigm. This paradigm conceptualised the basic idea that development is integral, multidimensional and dialectic process which can differ from one society to another (Okigbo and Eribo, 2004). Multiplicity paradigm led to emergence of a new form of communication called participatory communication.

Journal Citation Reports (JCR) and SCImago Journal Rank (SJR) are widely used metrics for evaluating journal impact. While JCR is based on Web of Science and emphasizes high-impact journals, SJR uses Scopus data, offering broader geographic and disciplinary coverage. This chapter evaluates their relative strengths and weaknesses, focusing on their applicability across disciplines and geographies. Multiple trends also impact research landscapes across the globe (Fig. 3.1).
Comprehensive tables provide a comparative overview of which metric is more suitable for various disciplines and global regions. The assessment of academic journals plays a critical role in research evaluation, academic promotions, and funding decisions. Two prominent journal-ranking systems, JCR and SJR, serve as benchmarks for these purposes. JCR, managed by Clarivate Analytics, primarily focuses on citation frequency over a two-year window. Conversely, SJR, developed by SCImago using Scopus data, incorporates a prestige-weighted citation approach over a three-year period (Fig. 3.2). Several of our Indian Scientific Journals are not covered by JCR. As more than 80 per cent Journals are from Europe and North America. The CLARIVATE covers only few Indian Journals most of which are published by Central Government Agencies

Horse

The visceral branches of the abdominal aorta are the coeliac, cranial mesenteric, renal, caudal mesenteric and testicular or ovarian.

The coeliac artery in horse is shorter than that in ox. It arises from ventral surface of the aorta and reaches the dorsal surface of the pancreas where it divides into three branches, the left gastric, hepatic and splenic.

The left gastric artery passes ventrally and cranially in the gastrophrenic ligament, gives off pancreatic and oesophageal branches and divides dorsal and caudal to the cardia into parietal and visceral branches. The parietal branch crosses the lesser curvature of the stomach just to the right of the cardia and ramifies on its parietal surface. The visceral branch is distributed in the similar manner on the visceral surface of the stomach. A long but narrow oesophageal branch arises from the parietal branch of the left gastric, passes cranially through the hiatus oesophageus and enters the thoracic cavity dorsal to the oesophagus and anastomoses with the oesophageal branch of broncho-oesophageal artery.

The hepatic artery is larger than the left gastric. It passes dorsal to the pancreas and reaches medial to the portal vein, divides into right and left branches from which the terminal branches enter the liver through portal fissure. Its collateral branches are the pancreatic, right gastric and the gastroduodenal arteries. The gastroduodenal artery further divides into right gastroepiploic and the cranial pancreaticoduodenal arteries.

Horse

The shoulder joint of horse has same features as those of ox. However, this joint in horse exhibits greater degree of mobility.

The elbow joint of horse is almost similar to that of ox except that there is only one interosseous ligament in horse against two in ox.

The carpal joint of horse has only minor differences from that of ox. The special feature of the joint in horse is that it has two additional ligaments, the superior check ligament and the inferior check ligament. The superior check ligament starts from the rough elevation on the distal third of the caudal surface, close to the medial border of the radius and is inserted to the tendon of superficial digital flexor above the carpus. The inferior check ligament is the continuation of the caudal (palmer) capsular ligament of the carpus. It joins the tendon of deep digital flexor at about midway on the palmer surface of the metacarpus. The check ligaments assist the tendons of flexor muscles of the digits after severe exertion to keep then tight and prevent flexion.

Horse

Articulations of bones of skull

Most of the joints of the bones of skull are sutures similar to those in ox. However, in the adult horse many of the sutures are effaced. The ossification of the cartilage between the basilar part of the occipital and the sphenoid occurs quite earlier. The fusion of the mandibular symphysis takes place at about second to third month after birth. The temporomandibular articulation has an additional ligament which consists of elastic tissue. It connects the post-glenoid process to the caudal border of the ramys of the mandible.

Hyoidean articulations

In the hyoidean articulations, there is only one intercornual articulation in horse instead of the proximal and distal cornual articulations appearing in the ox. The middle cornu is generally lodged in the articulation between the great and small cornu.

Horse

The hip joint has an additional ligament called the pubio-femoral ligament. It arises from the prepubic tendon, passes dorsally and laterally and then caudally and lodges into the subpubic (pubio-femoral) groove, penetrates the capsular ligament, passes through the acetabular notch and is inserted into the fovea capitis behind the round ligament on the head of femur. This ligament is peculiar to solipeds and it prevents the side kicking. The absence of this ligament in ruminants allows them abduction freely and that is how the ruminants can kick sideways. As against this, the equines can kick only back way. The other difference about the hip joint in horse is that the cotyloid ligament is narrower because of the deeper acetabulum.

The stifle joint of horse in general resembles that of ox except that the middle patellar ligament is not so prominent as that in ox.

The tibio-fibular articulation in horse is a diarthrosis and an amphiarthrosis. The diarthrosis is formed between the lateral condyle of tibia and the head of the fibula. It has intimate capsular ligament. The amphiarthrosis is formed between the shafts of the tibia and the fibula. The shafts of the two bones are binded by the proximal and distal interosseous ligaments.

The hock joint of horse has minor differences with those of ox owing to the difference in the number of tarsal bones and their arrangement. The synovial membrane is supported everywhere except at the dorsomedial (craniomedial) aspect where it bulges out in the cases of bog-spavin. If there is a distension of tarsal sheath, it bulges out as two rounded swellings on either sides of the tendon of deep digital flexor. The movements at the hock joint are very limited.

Horse

The arteries of fore limb of horse are more or less similar in their course and distribution. However, there are some special features in respect of some of these arteries as described below.

The brachial artery descends vertically on the medial aspect of humerus to its distal extremity, crosses it obliquely and descends along the joint capsule and medial lateral ligament of elbow joint, gives off common interosseous artery at the proximal third of the forearm and then continues distally as median artery.

The median artery descends along the caudomedial aspect of the radius covered by flexor carpi radialis muscle and divides just proximal to medial condyle into radial and collateral ulnar (ulnar) arteries.

The collateral ulnar artery is smaller of the two terminal branches of median artery. It descends along the cranial surface of radius under cover of the extensor carpi radialis and terminates a little above the carpus by anastomosing with a branch of radial artery.

Arteries

Horse

The common carotid artery in horse has a similar origin, course and distribution as that in ox except that it has no relation with the internal jugular vein since this vein is absent in horse. Each common carotid artery at its termination in front of the digastricus gives out internal carotid artery in horse in addition to the occipital and pharyngeal arteries given off by the common carotid artery in ox.

The internal carotid artery which is absent in ox is present in horse. It is considered as chief source of blood for the brain in horse. It passes over the guttural pouch and enters the cranial cavity through the foramen lacerum and gains the cavernous sinus. The internal carotid arteries of the opposite sides are connected by a large transverse branch called the intercarotid artery that lies behind the pituitary gland (further course of this artery will be described with the blood supply of the brain in horse).

The external carotid artery which is a direct continuation of the common carotid artery after its termination in front of the digastricus muscle is related to guttural pouch during its course along with other structures described in ox.

Horse

The arteries of the hind limb of horse have in general similar architecture as that of ox except the special features mentioned below.

The deep circumflex iliac artery which is a branch of the external iliac artery in ox has a variable origin in horse. It may originate directly from the aorta or the common iliac trunk just prior to the origin of the external iliac artery. The prepubic and deep femoral arteries arise either by a common trunk or separately from the femoral artery. The obturator artery is a well developed independent branch of the femoral artery in horse as against its origin as a branch of deep femoral artery in ox. The saphenous artery is a small branch of femoral artery and it supplies the skin on the medial aspect of the thigh and leg. The popliteal artery terminates by its division into cranial and caudal tibial arteries at a lower level in horse than that in ox. The caudal tibial artery is larger and longer in horse than that in ox. From the proximal plantar arch extend four caudal metatarsal arteries instead of four, two of them are superficial and the other two deep branches. The large metatarsal artery descends along the groove between the large and lateral small metatarsal bone and divides just above the fetlock into lateral and medial digital arteries. Each digital artery divides at the middle of the wing of the third phalanx into preplantar and plantar digital arteries. The preplantar digital arteries supply the sensitive laminae of the sole. The plantar digital arteries of the opposite sides form anastomosis. Small laminar branches from the anastomosis form the circumflex artery of the toe which supplies branches to the sole.

Arteries of thorax

Horse

The bronchial and oesophageal arteries in horse have a common trunk of origin as broncho-oesophageal artery. It arises from the convexity of aortic arch, passes ventrally and caudally on the right side of the aorta and divides into bronchial and oesophageal arteries. The oesophageal artery passes caudally in the caudal mediastinum along the dorsal face of oesophagus and supplies branches to oesophagus, caudal mediastinal lymph nodes and pleura and anastomoses with the pleuro-oesophageal branch of the gastric artery.

The intercostal arteries are eighteen pairs in number. The first pair arises from the superior artery, the next three pairs come from subcostal artery and the remaining four arise from the thoracic aorta.

The phrenic arteries are not variable in origin as in the ox. They are small and are two to three in number. They arise on the ventral face of the aorta while it passes through the hiatus aorticus and enter the crura of the diaphragm.

The rest of the arterial branches of thorax in horse are similar to those in ox.

Stomach

Horse

The stomach of horse is a simple stomach. It is ‘J’ shaped sac with its right part very much shorter than the left part. It is situated in the dorsal part of the abdominal cavity behind the diaphragm and liver mainly to the left of the median line. The parietal surface faces craniad and dorsad and to the left. It is related to the diaphragm and liver. The visceral surface faces caudad and ventrad and to the right. It is related to the small intestine and colon. Its lesser curvature is short and the greater curvature is extensive. The left extremity is called the saccus caecus. It lies ventral to the sixteenth or seventeenth rib. It is related to pancreas and terminal part of greater colon caudally and to the base of the spleen laterally. The right extremity is the pylorus. It is smaller and is continued by duodenum. The stomach is fastened by several ligaments which include the gastro-phrenic ligament, the gastro- pancreatic ligament, the greater omentum, the lesser omentum and the gastro-splenic ligament. The capacity of the equine stomach is about 8 to 15 liters.

The wall of the stomach consists of four coats, the serous, muscular, submucous and the mucous. The mucous membrane is clearly divided into two parts by sinuous ridge called the margo plicatus. The part which is towards the left extremity is nonglandular while that towards the right extremity is glandular.

Horse

The ovaries in mare are bean shaped and much larger than those of cow. Each is about 7 to 8 cm long and about 3 to 4 cm thick. It weighs about 70 to 80 gm. These are situated in the sublumbar region under the fourth or fifth lumbar vertebra. They are usually in contact with the roof of the abdomen. The average distance of ovaries from the vulvar orifice is about 50 to 55 cm in the average sized mare. The notch on the free border leads to a depression, the ovulation fossa where ovulation occurs.

The uterine tubes are shorter and more flexuous in mare than those in cow. Each is about 20 to 30 cm long. At its ovarian end it is wider with a diameter of about 4 to 8 mm and becomes narrower at its uterine end with a diameter of about 2 to 3 mm.

The uterus in mare is situated partly in abdomen and partly in pelvis. The horns of the uterus are usually pressed against the sublumbar muscles by the intestine. When moderately distended they are about 25 cm long. The junction of the uterine horns with the body of the uterus is abrupt. The average length of the body is about 18 to 20 cm and its diameter is about 10 cm when moderately distended. The cervix is about 5.0 to 7.5 cm in length and 3.5 to 4.0 cm in diameter. The cervical canal is straight. The mucous membrane of the uterus has no cotyledons.

The vagina in mare is shorter than that in cow. It measures about 15 to 20 cm in length and 10 to 12 cm in diameter when slightly distended. Most of the vagina is retroperitoneal.

Horse

In addition to the common articulations of vertebrae, the lumbar region of horse has two special articulations, the inter-transverse articulations and lumbosacral articulations.

The intertransverse articulations are bilateral joints formed between the transverse processes of the fourth and fifth and between the fifth and sixth lumbar vertebrae. The articular surfaces of these joints are the oval facets on the transverse processes of these vertebrae, the cranial ones being concave while the caudal ones the convex. These are synovial joints (diarthrodial). The capsule of the joint is reinforced ventrally.

The lumbosacral articulations are diarthrodial joints formed between the transverse processes of the sixth lumbar vertebra and the wings of the sacrum. These joints are similar to the intertransverse articulations.

The sacroiliac articulation of the pelvis is similar to that of ox. However, the sacrosciatic ligament is broader. Its lateral surface is related to middle gluteus, biceps femoris and semitendinosus muscles.

Horse

Lymph nodes of the wall of abdomen and pelvis

The lumbar aortic lymph nodes extend from kidneys to the deep circumflex iliac vessels. These are not clearly distinguishable from the cranial and caudal mesenteric, renal, testicular or ovarian, uterine and iliac lymph nodes.

The internal iliac lymph nodes are placed at about the origin of the iliac arteries. The external iliac lymph nodes are several small nodes situated in the triangular space between the cranial and caudal branches of the circumflex iliac artery.

The deep (internal) inguinal lymph node is not abdominal in position. It is not situated at the pelvic brim. It is one of the group of the lymph nodes of the hind limb.

The superficial (external) inguinal lymph nodes are on either side of the penis and in front of the superficial inguinal ring in male and above the mammary glands as the supramammary lymph nodes in female.

The prefemoral lymph nodes are about a dozen small glands arranged in an elongated mass placed on the medial aspect of the cranial border of tensor fasciae lata and on the caudal branch of circumflex iliac artery.

Horse

The testicles in horse are oval in form and they are comparatively smaller in size than those in ox. The long axis of the testicles is parallel to the body of the animal and hence the attached border of the testicle is dorsal while its free border is ventral in position inside the scrotum. The testicle of the stallion is about 10 to 12 cm long, 5 cm wide and about 6 to 7 cm thick. It weighs about 225 to 300 gm. The size of the left and right testicle varies and the left testicle is often larger than the right one.

The epididymis is adhered to the attached (dorsal) border of the testicle. The rest of the features of epididymis in horse are similar to those of ox.

The vas deferens of horse right from its origin from the tail of epididymis to its course up to the dorsal surface of the bladder it has a uniform diameter of about 6 mm. Thereafter, it forms a fusiform enlargement, the ampulla of the vas deferens and beyond the ampulla the duct abruptly reduces in size. The ampulla is about 15 to 20 cm long and its diameter is about 2 cm. The genital fold is wider and hence the two ducts apart from each other. The vas deferens and the duct of seminal vesicle open in a common ejaculatory orifice on each side of the colliculus seminalis.

Horse

The muscles of lumbar spine in horse are more or less similar to those of ox. Of the sublumbar muscles, the psoas minor lies under the bodies of the lumbar and last three thoracic vertebrae. It arises from dorsal ends of sixteenth and seventeenth ribs and eighteenth thoracic vertebra and the first five lumbar vertebrae.

The psoas major arises from dorsal ends of last two ribs and the ventral faces of the transverse processes of the lumbar vertebrae. It is much wider than that of ox and covers the quadratus lumborum entirely.

The origin of iliacus muscle is limited to sacrum and ilium only. It has no lumbar origin and it is not so intimately united with psoas major muscle.

The quadratus lumborum is less developed.

The intertransversarii lumborum is absent between the fifth and sixth lumbar transverse processes.

The muscles of abdominal wall in horse do not have any striking differences, except that the obliquus abdominis externus is thicker and more extensive. The muscular portion of this muscle reaches the external angle of ilium and as high as lumbar transverse processes.

Horse

The muscles of shoulder region namely the supraspinatus, infraspinatus, teres major, teres minor and coracobrachialis in horse resemble those of ox. The subscapularis muscle has only a single head of origin in horse as against three heads in ox. The deltoideus muscle has two parts of origin as that of ox but in horse its acromial part is named as cranial part and it arises from scapular spine and the scapular fascia instead of the acromion process. In addition to these muscles, the shoulder in horse is composed of one more muscle named as capsularis. The capsularis is a very fine narrow muscle arising from the caudal part of the rim of the glenoid cavity of scapula and is inserted on the caudal part of the neck below the head of the humerus by insinuating itself between the fibres of brachialis muscle. This muscle is peculiar to solipeds and it raises the capsular ligament of shoulder joint during flexion of the joint.

The muscles of arm in horse are in general similar to those of ox except the following minor differences. The tendon of origin of biceps brachii is adapted to the intertuberal (bisipital) groove. The tensor fasciae antibrachii is thin in front and wide below. The medial head of triceps brachii is less developed and extends from the middle of the medial surface of shaft of humerus. The anconeus is smaller and less voluminous.

Amongst the muscles of forearm and manus, the flexors of carpus especially the flexor carpi radialis, flexor carpi ulnaris and the ulnaris lateralis resemble those of ox. The pronator teres is either vestigial or completely absent. The medial digital extensor is absent. The extensor carpi radialis resembles that of ox. The common digital extensor arises in common with the extensor carpi radialis. Its tendon descends over the synovial capsule of the carpus, passes down the metacarpus and at the fetlock it receives two slips from suspensory ligament to form the broad ligament which is inserted to the pyramidal extensor process of the distal phalanx. The lateral digital extensor is smaller. It arises from humerus and radius. Its tendon is inserted to the prominence on the dorsal (cranial) aspect of the proximal extremity of the proximal phalanx. The extensor carpi obliquus is inserted to the head of the medial small metacarpal bone. The superficial digital flexor does not divide into two parts. Its tendon is reinforced above the carpus by a strong fibrous band- the superior check ligament. The ring for the deep digital flexor is formed entirely by the tendon of superficial digital flexor. The deep digital flexor has same heads of origin as those of ox. Its tendon receives about half way down the metacarpus the inferior check ligament. It is inserted to the semilunar crest and tendinous surface of the distal phalanx.

Horse

The cutaneous muscle in horse is thin and incompletely developed in the superficial fascia. The cutaneous muscle of the facial region (cutaneous fasciei) is incomplete and poorly developed over the mandibular space and the massetor muscle. Rostrally it passes to the angle of the mouth and blends with the orbicularis oris. The cutaneous muscle of the cervical region (cutaneous colli) is situated along the ventral region of the neck.

The frontalis muscle is absent.

The orbicularis oris forms incomplete ring around the rima oris. The levator nasolabialis is less extensive and is divided into the superior and inferior branches. Between the two branches pass the dilator naris lateralis and levator labii superioris. The levator labii superioris extends from malar, lacrimal and the maxillary bones to the upper lip in a common tendon with the muscle of the opposite side. The zygomaticus is thin, short and weak. It arises from the fascia covering the massetor. The incisivus maxillaris muscle which is absent in ox exists in horse and it lies under the mucous membrane of the upper lip. It originates on the alveolar border of the incisive bone from the level of lateral incisor to the first premolar and it inserts to the upper lip. Its action is to depress the upper lip. The incisivus mandibularis which is also absent in ox exists in horse under the mucous membrane of the lower lip. It originates at the alveolar border of the body of the mandible from the level of lateral incisor to the first premolar and is inserted on the skin of the lower lip and the chin. Its action is to raise the lower lip. The incisivus maxillaris and the incisivus mandibularis muscles acting together cause the closing of rima oris. The depressor labii inferioris is thicker and extends further back. The buccinator is almost similar to that of ox.

Horse

The tensor fasciae latae is less extensive.

The superficial gluteus exists separately. It is ‘V’ shaped. It originates from the lateral angle of ilium (tuber coxae) and gluteal fascia and is inserted to the third trochanter. The middle gluteus is the largest of the three gluteal muscles and is very extensive. It originates from the aponeurosis of the longissimus dorsi, extends as far forwards up to first lumbar vertebra and is inserted in three heads, to the trochanter major, the crest ventral to trochanter major and the trochanteric ridge. The deep gluteus is smaller than the middle gluteus and is inserted to the convexity of the trochanter major.

The biceps femoris has an additional insertion to the femur on the rough surface near the trochanter tertius.

The semitendinosus arises from the transverse processes of the first two or three coccygeal vertebrae. The semimembranosus is larger and arises from the sacrosciatic ligament also.

The sartorius does not arise from the shaft of the ilium. The gracilis is not so extensively fused to its fellow at the origin.

The obturator internus has an iliac part- the pisiformis. Its tendon passes through the lesser sciatic foramen and hence does not unite with that of the obturator externus.

Articularis genu is absent

Horse

The fascia in the cervical region of horse has two layers, the superficial and deep. Each of these is also double layered. The superficial fascia contains the cutaneus muscle the cutaneus colli. The fascia of the two sides meets at the median line along the nuchal ligament and ventrally at the fibrous raphe.

The brachiocephalicus is undivided. It arises from the mastoid process, nuchal crest and wing of the atlas and the transverse process of the second, third and fourth cervical vertebrae. The sternocephalicus is also undivided. It arises from the cartilage of the manubrium sterni and inserts at the angle of the lower jaw. The dorsal border of this muscle forms the ventral border of the jugular furrow. The sternothyrohyoideus muscle consists of two separate but unequal parts, the sternothyroideus and the sternohyoideus. The sternothyroideus is and the sternohyoideus is larger. The first part inserts on the thyroid cartilage of the larynx and the second part inserts to the body of the hyoid bone. The omohyoideus is more extensive in horse than that in ox. It arises from the subscapular fascia near the shoulder joint and inserts at the body and the lingual process of the hyoid bone. The scalinus has two parts like those of ox, but the dorsal part in horse is smaller. It arises on the transverse process of the seventh cervical vertebra and inserts on the first rib. The ventral part is very extensive. It arises from the transverse processes of the third to sixth cervical vertebrae and inserts on the medial surface of the cranial border of the first rib. The longus capitis (rectus capitis ventralis major) arises from the transverse process of third, fourth and fifth cervical vertebrae and is inserted on the tubercle at the junction of basilar part of occipital bone with the basi sphenoid. It does not form aponeurosis either at the origin or at its insertion. The rectus capitis ventralis (rectus capitis ventralis minor) is smaller in horse than that in ox. The intertransversarii cervicis (intertransversalis colli) are smaller and present six fasciculi. The most cranial of these is separated from the common mass formed by the rest of these fascicles.

Muscles of the back (spine), muscles of thorax and muscles of thoracic girdle of Horse, Dog, Sheep and Goat, and Pig almost resemble those of ox except for a few miner differences due to variations in the number of bony segments of the vertebrae, ribs and sternebrae.

Fowl

Muscles of back (spine)

Spinalis thoracis is the thoracic part of the spinales complexus. It originates by aponeurosis on the spinous processes of the thoracic vertebrae including the dorsal median ridge of the synsacrum, dorsal surface of the bases of the transverse processes and the cranial border of the ilium. The muscle inserts by multiple tendinous slips on the spinous processes, vertebral arches, transverse processes of several thoracic vertebrae and the vertebral ribs. This muscle helps in straightening of the head and neck of the fowl.

Iliocostalis et longissimus dorsi is the segmented muscle originating on the transverse processes of the thoracic vertebrae and inserting on the vertebral parts of the ribs. This muscle assists in elevating the thorax.

Horse

There are six pairs of lumbar, five pairs of sacral and five pairs of coccygeal spinal nerves in horse. Their origin, course and distribution is in general similar to those in ox.

The number of sympathetic lumbar and coccygeal ganglia is just the same in horse as that of ox. However, the number of sacral sympathetic ganglia is four in horse as against five ganglia of ox.

The greater (major) splanchnic nerve in horse is formed by the fibres received from sixth or seventh to fourteenth or fifteenth thoracic sympathetic ganglia. It is smaller in its cranial thoracic part but as it proceeds caudally it gradually increases in size so much that it becomes larger than the thoracic sympathetic trunk in the caudal thoracic part. It receives a communicating branch from the lesser splanchnic nerve before terminating in the coeliacomesenteric ganglion.

The lesser (minor) splanchnic nerve is formed by fibres received from the last three or four thoracic and the first two lumbar sympathetic ganglia. It communicates with the greater splanchnic nerve and the renal and adrenal plexuses and terminates in the coeliac plexus and ganglion.

The rest of the features of spinal nerves and autonomic plexuses of the abdomen and pelvis in horse are almost similar to those of ox except those related to the distribution of fibres to the parts of ruminant versus simple stomach.