Neurones etc

What are the two main divisions of the nervous system?
The central nervous system and the peripheral nervous system
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What is the CNS comprised of?
Brain and spinal cord
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What is the PNS divided into?
Sensory neurons which carry impulses away from receptors to the CNS. Motor neurons which carry nervous impulses from the CNS to effectors
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What is the spinal cord?
A column of nervous tissue
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Define reflex
An involuntary response to stimulus
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How many neurons does the reflex arc contain?
3- sensory, intermediate and motor
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Other cards in this set

Card 2

Front

What is the CNS comprised of?

Back

Brain and spinal cord

Card 3

Front

What is the PNS divided into?

Back

Preview of the front of card 3

Card 4

Front

What is the spinal cord?

Back

Preview of the front of card 4

Card 5

Front

Define reflex

Back

Preview of the front of card 5
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