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Control and monitor non-conscious body processes
Ex: heart rate, blood pressure, digestion
Divided into separate opposing systems
Sympathetic Branch (excitatory)
Parasympathetic Branch (inhibitory)
Sympathetic
Thoraco-lumbar nerves
Sympathetic chain (& chain ganglia)
Excitatory, speed up or increase response (fight or flight)
Parasympathetic
Cranio-sacral nerves
No chain (collateral ganglia)
Inhibitory, slow down or decrease response (rest & digest)
