endocrine system Flashcards
what are the messengers for endocrine system and what do they secrete
glands which secrete hormones
what are things part of the endocrine system (6)
pituitary gland
thyroid
adrenal glands
pancreas
testes
ovaries
what does the pituitary gland do
tell body what to do
tells what glands hormones to secrete
what does thyroid do
regulates metabolism
growth and development
what does adrenal gland do
produces adrenaline in flight or fight responses
what does pancreas do
produces insulin and glucagon to control blood glucose levels
what does the testes do
produces testosterone which responsible for puberty also has sperm cells
what does ovaries do
produces oestrogen for puberty and as egg cells
5 differences between endocrine and nervous
hormones - electrical impulse
bloodstream /glands - neurons
slowly - fast
long lasting - short
generalised - precise
what 4 things does adrenaline do
blood pressure
blood glucose
blood flow
heart rate
what does adrenaline cause the conversion of
glycogen - glucose
what happens if there’s too little thyroxine
pituitary gland releases tsh which tells the thyroid to produce thyroxine
what happens if there’s too much thyroxine
thyroxine inhibits TSH decreasing the amount the thyroid produced by the thyroid
what produces TSH
pituitary gland
what inhibits TSH
thyroxine
