The Autonomic System Flashcards
what is the autonomic nervous system apart of?
PNS
what is the autonomic system regulated by?
hypothalamus
what are the 2 components of the autonomic system?
sympathetic
parasympathetic
what is the parasympathetic division?
‘rest & digest’ - restores normal bodily functions after extra stimulation of sympathetic system.
whats the neurotransmitter involved in the parasympathetic division
acetylcholine
whats the sympathetic division
‘fight or flight’ - prepares body for physical activity
whats the neurotransmitter involved in the sympathetic division
noradrenaline
what happens with the eyes in the PS & S?
PS - constricts the pupil
S - dilates pupil
what happens with the salivary glands in the PS & S?
PS - stimulates salivation
S - inhibit salivation
what happens with the heart in the PS & S?
PS - slows heartbeat
S - accelerates heartbeat
what happens with the lungs in the PS & S?
PS - constricts bronchi
S - dilate bronchi
what happens with the stomach in the PS & S?
PS - stimulates digestion
S - inhibits digestion
what happens with the liver in the PS & S?
PS - stimulates bile release
S - stimulates glucose release
what happens with the intestines in the PS & S?
PS - stimulates peristalsis & secretion
S - inhibit peristalsis & secretion
what happens with the bladder in the PS & S?
PS - contracts bladder
S - relaxes bladder