Anatomy And Physiology And External Orientation
Overview
Before a livestock officer opens a single textbook on the rumen or the heart, she runs her eyes and her hands over the animal in front of her: the set of its ears, the fill of its flank, the dryness of its muzzle, the way it stands on its pasterns. Every farmer, buyer and veterinary officer in Nigeria reads an animal this way first, from the outside in, using a shared vocabulary of named body regions long before any internal system is discussed. That vocabulary, and the two words that frame everything else in this section of the syllabus, anatomy and physiology, are what this lesson builds.
You will learn precisely what anatomy and physiology mean and how they differ, why a stockman who knows both spots trouble earlier and treats it more safely, and the standard external points, poll, muzzle, dewlap, withers, brisket, barrel, flank, hock and pastern, used to describe conformation and locate a problem exactly. Eight further notes in this section will each open up one internal system, the digestive, nervous, endocrine, integumentary, skeletal, muscular, reproductive, circulatory, respiratory and excretory systems in turn, and every one of them leans on the orientation you learn here.
Objectives
- Define anatomy and physiology
- Identify the external body parts of a farm animal
- Explain the importance of studying anatomy and physiology to a farmer
- Describe the external orientation of a named farm animal
Mind map
This topic is mapped out so you can see how the ideas connect.
Flashcards
Quick recall practice on the facts this topic is tested on.
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Anatomy And Physiology And External Orientation. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- The study of the structure of an animal's body is called: A. Physiology B. Anatomy C. Pathology D. Taxonomy Answer: B
- Which external point of a farm animal is the ridge where the neck meets the back, above the shoulders? A. Poll B. Withers C. Brisket D. Flank Answer: B
- The backward-bending joint found roughly midway down the hind leg of a farm animal is the: A. Pastern B. Hock C. Dewlap D. Muzzle Answer: B
- A stockman notices that a cow's flank looks hollow and tucked up. This is most likely a sign of: A. Good rumen fill B. Reduced feed intake or illness C. Pregnancy D. Normal rest after feeding Answer: B
- The loose fold of skin hanging under the throat and neck of cattle is called the: A. Withers B. Barrel C. Dewlap D. Poll Answer: C
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Revision Questions
Wondering what past questions for this topic looks like? Here are a number of questions about Anatomy And Physiology And External Orientation from previous years
Question 1 Report
Specimen K (Head of cock)
(a) Draw and label five parts of specimen K.
(b) Mention one function of each of the labelled parts of specimen K.
(c) Mention two management practices that could be carried out on specimen K.
Specimen L (Pair of scissors)
(d) Name one toll which could be used in place of specimen L to carry out the management practices on specimen K.
Answer Details
Specimen K (Head of a cock)
(a) Drawing and labelling of five parts of specimen K
The head of a cock is drawn below with five parts clearly labelled: the comb, the eye, the beak, the nostril and the wattle.
(b) One function of each of the labelled parts
| Labelled part | One function |
|---|---|
| Comb | Helps to regulate the body temperature of the bird (heat loss). |
| Eye | For sight / vision. |
| Beak | For picking up feed and drinking water (also for scratching and defence). |
| Nostril | For breathing (respiration) and for smelling. |
| Wattle | Aids temperature regulation and serves as a sign of sex appeal / maturity. |
(c) Two management practices that could be carried out on specimen K
- Debeaking - trimming the tip of the beak to prevent cannibalism, feather pecking and egg eating.
- Dubbing (decombing) or dewattling - trimming the comb and/or wattle to prevent frostbite and injury and to reduce fighting.
Specimen L (Pair of scissors)
(d) One tool that could be used in place of specimen L
A sharp knife could be used in place of the pair of scissors to carry out the management practices on specimen K. (A sharp blade, a scalpel or a beak trimmer would serve the same purpose.)
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