endocrine system Flashcards
what is the endocrine system?
it is a system composed of glands that secrete chemicals called hormones directly in the blood stream
what are the important structures in the endocrine system and how many are there?
6
-pituatary gland
-thyroid gland
-adrenal gland
-pancreas
-testes
-ovaries
what are these chemical substances that are released called+ what happens when they are carried around the body?
hormones + they circulate in the blood stream which affect target organs
how are hormones produced and what do they control?
they are produced in large quantities + control ongoing internal functions which help our body react to changes in the environment
what is the function of the pituatarty gland and what is it reffereed as ?
referred as the βmaster glandβ because it controls release of other hormones from all other endorine glands
what is the pituatary gland controlled by
hypothalomus
what does the thyroid gland release and state its function
releases thyroxineβ>increases heart rate, metabollic rate and affects growth rate
what are the two parts of the adrenal glands and what do they release
adrenal medullaβ>releases adrenaline and noradrenaline.
adrenal cortexβ>releases cortisol
what is the function of the adrenal medulla?
it is used in fight or fligth response
what is the function of the adrenal cortex
stimuation of release of glucose while suppresing the immune system