negative feedback, thyroxine and adrenaline Flashcards
thyroxine is found in
thyroid glands
thyroxine function
regulated body metabolic rate
speed at which body transfers energy from chemical stores in order to perform its functions
what gland release adrenaline from where
adrenal glands
near kindneys
fight or flight response
negative feedback
used in homeostatsis that keeps internal conditions constant
how thyroxine levels are controlled
hypothalamus detects cells need more energy
pituitary gland released TSH
thyroid gland produces thyroxine
hypothalamus detects cells have enough energy
pituitary stops producing TSH
thyroid stops producing thyroxine
adrenaline levels are controlled
respiring quickly to increase ATP production
inc breathing rate to cope with oxygen demand
inc heart rate
diverting blood from areas
