PNS Systems

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5 Terms

1
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What is the somatic nervous system?

Voluntary control of skeletal muscles, includes the reflex arc

2
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What is the autonomic nervous system?

Involuntary functions such as heartbeat, breathing and digestion

3
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What is the difference between somatic and autonomic actions?

Somatic controls voluntary body movement, autonomic controls involuntary actions

4
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What is the sympathetic nervous system?

‘Fight or flight’ - prepares the body for stress, eg faster heart rate and breathing

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What is the parasympathetic nervous system?

 ‘Rest and digest’ - reverses the sympathetic effects, eg slower heart rate, digestion