Nervous System

Overzicht

A goat that snatches its hoof off a hot zinc roofing sheet before it even feels the burn, and a bull that arrives at the Kano abattoir with a pounding heart and a silent gut after a rough truck ride from Sokoto, are both being run by the same system: the nervous system. It is the fastest communication network any animal owns, and a stockman who understands it reads an animal's behaviour, health and stress the way a mechanic reads an engine.

In this lesson you will learn the two divisions WAEC expects you to know: the central nervous system, brain and spinal cord, which processes information and fires reflexes, and the autonomic nervous system, whose sympathetic and parasympathetic halves pull the heart, gut and lungs in opposite directions without the animal ever choosing to. You will trace a reflex arc, contrast fight or flight against rest and digest, and see why this physiology decides how a stockman handles, transports and reads the health of every animal in the pen.

Doelstellingen

  1. Define the nervous system
  2. Distinguish between the central nervous system and the autonomic nervous system
  3. State the functions of the central nervous system
  4. State the functions of the autonomic nervous system
  5. Explain the importance of the nervous system to a farm animal

Lesnotitie

A dairy attendant in Vom finds a cow circling weakly, head pressed to the wall. Near Aba, a herdsman finds a newly castrated buck with its jaw locked stiff. Both are watching the nervous system signal that something is wrong.

Lesevaluatie

Gefeliciteerd met het voltooien van de les op Nervous System. Nu je de sleutelconcepten en ideeën, het is tijd om uw kennis op de proef te stellen. Deze sectie biedt een verscheidenheid aan oefeningen vragen die bedoeld zijn om uw begrip te vergroten en u te helpen uw begrip van de stof te peilen.

Je zult een mix van vraagtypen tegenkomen, waaronder meerkeuzevragen, korte antwoordvragen en essayvragen. Elke vraag is zorgvuldig samengesteld om verschillende aspecten van je kennis en kritisch denkvermogen te beoordelen.

Gebruik dit evaluatiegedeelte als een kans om je begrip van het onderwerp te versterken en om gebieden te identificeren waar je mogelijk extra studie nodig hebt. Laat je niet ontmoedigen door eventuele uitdagingen die je tegenkomt; beschouw ze in plaats daarvan als kansen voor groei en verbetering.

  1. Which two organs make up the central nervous system of a farm animal? A. Heart and lungs B. Brain and spinal cord C. Spinal cord and rumen D. Brain and heart Answer: B
  2. The brain region mainly responsible for balance and coordination of movement is the: A. Cerebrum B. Medulla oblongata C. Cerebellum D. Spinal cord Answer: C
  3. Arrange in the correct order for a reflex action: (i) effector (ii) receptor (iii) relay neuron (iv) motor neuron (v) sensory neuron. A. ii, v, iii, iv, i B. i, ii, iii, iv, v C. ii, iii, iv, v, i D. v, ii, iii, iv, i Answer: A
  4. Which division of the autonomic nervous system slows the heart rate and increases gut activity? A. Sympathetic B. Parasympathetic C. Central D. Peripheral Answer: B
  5. A frightened animal's heart rate rises and its digestion slows down. This response is controlled by the: A. Parasympathetic division B. Cerebellum C. Sympathetic division D. Spinal reflex arc Answer: C

Aanbevolen Boeken

Introduction to Animal Science: Global, Biological, Social and Industry Perspectives
Introduction to Animal Science: Global, Biological, Social and Industry Perspectives
Ondertitel: Sixth edition
Uitgever: Pearson
Jaar: 2017
ISBN: 978-0-13-443605-0
Beschrijving: A comprehensive introduction to animal science covering anatomy and physiology, nutrition, genetics, reproduction, animal health and the major farm animal species and their production systems.
Small-scale Poultry Production: Technical Guide
Small-scale Poultry Production: Technical Guide
Uitgever: Food and Agriculture Organization of the United Nations
Jaar: 2004
ISBN: 978-92-5-105082-8
Beschrijving: An FAO Animal Production and Health Paper written by a Nigerian animal scientist, covering breeds, housing, feeding, incubation, disease control and marketing for small-scale poultry keepers in developing countries.
Tropical Animal Feeding: A Manual for Research Workers
Tropical Animal Feeding: A Manual for Research Workers
Uitgever: Food and Agriculture Organization of the United Nations
Jaar: 1995
ISBN: 978-92-5-103758-4
Beschrijving: An FAO Animal Production and Health Paper on the principles of ruminant and non-ruminant nutrition and the practical use of tropical feed resources, including crop residues and by-products, in sustainable livestock systems.