Autonomic nervous system

what makes up the autonomic nervous system?

sympathetic and parasympathetic divisions

what is the autonomic nervous system a part of?

peripheral nervous system

what regulates the autonomic nervous system?

hypothalamus

parasympathetic system

rest and digest

restores normal functioning after extra stimulation of the sympathetic system is no longer being carried out

parasympathetic neurotransmitter

acetylcholine (ACh)

sympathetic system

fight or flight

prepares body for physical activity

sympathetic neurotransmitter

noradrenaline (NA)

parasympathetic body functions

eyes - constrict pupils

salivary glands - stimulates salivation

heart - slows heartbeat

lungs - constrict bronchi

stomach - stimulates digestion

liver - stimulates bile release

intestines - stimulates peristalsis and secretion

bladder - contracts bladder

sympathetic body functions

eyes - dilate pupils

salivary glands - inhibit salivation

heart - accelerates heartbeat

lungs - dilate bronchi

stomach - inhibits digestion

liver - stimulates glucose release

kidneys - stimulate epinephrine and norepinephrine release

intestines - inhibit peristalsis and secretion

bladder - relaxes

autonomic nervous system diagram