Nervous System
Gbogbo ọrọ náà
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.
Ebumnobi
- Define the nervous system
- Distinguish between the central nervous system and the autonomic nervous system
- State the functions of the central nervous system
- State the functions of the autonomic nervous system
- Explain the importance of the nervous system to a farm animal
Akọmọ Ojú-ẹkọ
Yi rajista ka ci gaba
Kpọpụta akaụntụ n’efu ka ị nweta ohere na ihe ọmụmụ niile, ajụjụ omume, ma soro mmepe gị.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Nervous System. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- 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
- 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
- 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
- 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
- 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
Yi rajista ka ci gaba
Kpọpụta akaụntụ n’efu ka ị nweta ohere na ihe ọmụmụ niile, ajụjụ omume, ma soro mmepe gị.
Yi rajista ka ci gaba
Kpọpụta akaụntụ n’efu ka ị nweta ohere na ihe ọmụmụ niile, ajụjụ omume, ma soro mmepe gị.
