endocrine AP Flashcards
an organ or tissue that responds to a particular hormone is known as a
target
___ are chemical messengers of the endocrine system
hormones
the endocrine works closely with the ___ system
nervous
endocrine glands can either be ___ or ___ unless it is the ___, which has both functions
endocrine, exocrine, pancreas
how does negative feedback work
activity decreased by rising levels of hormones
how does positive feedback work
activity increased by falling levels of hormones
what role does the hypothalamus have
controls activities of the pituitary gland, appetite control, body temp regulation, control of wake - sleep cycles
the hypothalamus is connected to the anterior pituitary gland by ____ and connected to the posterior pituitary gland by ___
blood vessels, neurons
the 2 hormones that are produced by the hypothalamus and stored in the posterior pituitary are ___ and ___
antidiuretic hormone and oxytocin
the ___ is referred to as the master gland
pituitary
GH (growth hormone)
promotes body growth
prolactin
triggers and maintains lactation
thyroid stimulating hormone (TSH)
stimulates the thyroid gland
ACTH (adrenocorticotropic hormone)
stimulates adrenal cortex and production of cortisol
FSH (follicle stimulating hormone)
stimulates oogenesis and spermatogenesis
LH (lutenizing hormone)
causes ovulation and development of the corpus luteum
MSH (melanocyte stimulating hormone)
unsure - color changes of reptiles / fish / amphibians
___ and __ are aka gonadotropins
FSH and LH
how does oxytocin affect the uterus and mammary glands
induces contractions and causes milk let down
what gland produces PTH and what does PTH do
parathyroid gland - increases levels of calcium
the body can increase calcium levels in the blood by _____, ____, or _____
kidneys retain calcium, intestines absorb calcium from food, withdraw calcium from bones
what hormones are produced by the adrenal cortex
glucocorticoids, cortisol, mineralcorticoids, aldosterone, sex hormones, estrogen
what role does aldosterone play
prevents diuresis / dehydration, sodium retention, increase blood pressure/volume
along with the endocrine system, aldosterone plays a role in the ___ system. this system involves baroreceptors, the kidneys and the heart and can be manipulated through the use of
RAAS - ace inhibitors