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10 cards from this deck
All nerve pathways outside brain & spinal cord
12 pairs cranial nerves + 31 pairs spinal nerves
Voluntary/skeletal muscles
External environment changes
Involuntary actions (heart rate, breathing, digestion)
'Fight or flight' emergency response
↑ heart rate, wider airways, dilated pupils, ↑ sweat, ↓ digestion
'Rest & digest' - returns body to calm state
↓ heart rate, ↑ digestion, constricted pupils, bladder contraction
Sympathetic & parasympathetic have opposite effects on same organs
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