heart- f or f- increase heart rate, rest and digest- heart rate slows down
digestive system- f or f (sympathetic)- decrease stomach acid and digestion, rest and digest (key word digest) (parasympathetic)- increase in stomach acid and digestion
eyes (iris)- F or F (sympathetic)- dilate pupils- parasympathetic would be constrict pupils
fight or flight response is the evolutionary survival mechanism in response to threat, it primes the body for extreme action, fighting for our lives or escaping the threat, if we survive and the threat is over our bodies can return to their normal state (back to homeostasis)
this phenomenon involves the endocrine system and the autonomic nervous system
the parasympathetic branch of the ANS is responsible for regulating your bodily functions when you are resting, but the sympathetic branch is responsible for prepping your body for fight or flight
sympathetic NS function for F or F- the hypothalamus activates the sympathetic nervous system which prepares our body for fight or flight
sympathetic branch- neurons from the sympathetic NS activate the adrenal medulla, part of your adrenal glands on top of your kidneys
from the adrenal medulla on top of your kidneys- adrenaline and noradrenaline are released from here into the bloodstream
