Nervous System Re-Cap Questions

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What are functions of the nervous system?
To receive information about the external environment, receive information about the tissues and organs of the animals own body (internal environment), interpret the information received and send implulses throughout the body to stimulate activity
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What are internal messages in the nervous system?
Pain, heart rate, going to the toilet
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What are external messages in the nervous system?
Noise (hearing), temp, touch and odour (smell)
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Name the two parts the nervous system comprises of?
Central nervous system (CNS) and Peripheral nervous system (PNS)
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What does the CNS consist of?
The brain and spinal cord
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What does the PNS consist of?
All the others nerves of the body - the 'outer' nervous system
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What do motor nerves aka efferent do?
Carry impulses away from the CNS (initiates action)
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What does sensory nerves aka afferent do?
Carry impulses towards the CNS (provide information)
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A sensory nerve can be described as?
Afferent (travels towards CNS)
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Are somatic nerve fibres involuntary or voluntary?
Voluntary
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A nervous impulse enters a neuron via which structure?
Dendrites
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What is the function of myelin and which type of cell produces it?
Impulses travel faster - Schwann cells
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Name 2 common neurotransmitters
Acetylcholine, serotonin, noradrenaline, GABA and dopamine
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The pons forms part of which region of the brain?
Hindbrain
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Which region of the hind brain is involved with controlling the heart and respiration?
Medulla oblongata
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Which part of the brain is responsible for maintaining the conscious state?
Midbrain
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What is the prime function of the hypothalamus?
Regulates autonomic nervous system and pituitary
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Which of the three meninges is situated most superfificially?
Dura mater
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CFS is situated between which two meningeal membeanes?
Arachnoid and pia
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Which structures secrete CSF?
Chroid plexuses
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List the 12 carnial nerves in order:
I - Olfactory, II - optic, II - ocular motor nerve, IV - trochlea, V - trigeminal, VI - abducens, VII - facial, VIII - vestibuloccochlear nerve, IX - glossopharyngeal, X - vagus, XI - accessory nerve, XII - hypoglossal
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Sensory nerves enter the spinal cord via which root?
Dorsal
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Name the 2 important peripheral nerves that supply the hind limb
Sciatic and femoral
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Which part of the autonomic nervous system dominates when an animal is relaxed?
Parasympathetic
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List 4 effects of the sympathetic nervous system?
Increased HR/resp prates, blood diverted to skeletal muscle, dilated pupils, GI secretions decrease/stop, blood diverted away from the skin and GIT
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List 4 effects of the parasympathetic nervous system?
GI secretions increase, decrease HR/resp rates, peristalsis increased in GIT, pupils constrict and increase tear production
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Other cards in this set

Card 2

Front

What are internal messages in the nervous system?

Back

Pain, heart rate, going to the toilet

Card 3

Front

What are external messages in the nervous system?

Back

Preview of the front of card 3

Card 4

Front

Name the two parts the nervous system comprises of?

Back

Preview of the front of card 4

Card 5

Front

What does the CNS consist of?

Back

Preview of the front of card 5
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