Nervous System

Übersicht

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.

Ziele

  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

Lektionshinweis

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.

Unterrichtsbewertung

Herzlichen Glückwunsch zum Abschluss der Lektion über Nervous System. Jetzt, da Sie die wichtigsten Konzepte und Ideen erkundet haben,

Sie werden auf eine Mischung verschiedener Fragetypen stoßen, darunter Multiple-Choice-Fragen, Kurzantwortfragen und Aufsatzfragen. Jede Frage ist sorgfältig ausgearbeitet, um verschiedene Aspekte Ihres Wissens und Ihrer kritischen Denkfähigkeiten zu bewerten.

Nutzen Sie diesen Bewertungsteil als Gelegenheit, Ihr Verständnis des Themas zu festigen und Bereiche zu identifizieren, in denen Sie möglicherweise zusätzlichen Lernbedarf haben.

  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

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