Endocrine System (Gross Anatomy (Adrenal Cortex: outer top cortex of…
: will secrete hormones that will either inhibit or stimulate release of hormone from anterior pituitary gland. Synthesizes two hormones stored in axon terminals in posterior pituitary,
True endocrine tissue that secretes hormones
stimulates growth of all cells and epiphyseal plates, secreted as a child and throughout adulthood to maintain cells.
Thyroid stimulating hormone:
stimulates thyroid to produce hormone
stimulate hormone release from cortex of adrenal gland
: Follicle stimulating hormone and lutienizing hormone, stimulates gonads to produce hormones.
: stimulates the synthesis of milk in breast tissues
part of the brain, stores but does not make/secrete hormones and is not a true endocrine gland. Stores Oxytocin and Vasopressin
: antidiuretic hormone, kidney will either preserve or excrete water
: stimulates uterus contraction (pitocin)
increases rate of metabolism (conversion of nutrients to energy - includes oxygen)
Calitonin: Active only in children, decreases the activity of osteoclasts (so children can build bones up)
not directed by pituitary, measures calcium level in blood and will create hormones that are able to increase calcium levels.
: increases calcium absorption, targets kidneys, to control calcium excretion, and GI tract to control calcium absorption
outer top cortex of kidney, produces cortico steroids
outer zone, secretes minerals corticoids, making kidneys keep water and sodium
: middle zone, secretes glucorticoids - helps keep blood glucose levels normal, helps in dealing with stress - long and short term
deepest, secretes glucorticoids and androgen, (in other tissues this becomes testosterone and estrogen)
: sympathetic and endocrine function, hormone submitted by cells that travels in blood
has exocrine and endocrine functions, has islet cells which have alpha and beta cells. Alpha cells: secrete glucagon - increases blood glucose. Beta cells: secretes insulin - decreases blood glucose.
produce/secretes estrogen and progesterone
secretes thymic hormones :
leukocyte, cause the T lymphocyte to become immunocompetent (produces an immune response) to invaders (pathogens)
Parts of the Endocrine System
chemical messenger that travels in the blood (stimulus and response vary, travels slowly and lasts longer than neurotransmitter). Able to trigger molecules once bound to certain cells (target cells)
Cells that contain specific receptor molecule that allows particular hormones to bind to it. These cells are located throughout the body.
specialized endocrine tissue organs,
include; pituitary gland,thyroid gland, parathyroid glands, adrenal glands, pineal glands, pancreas, thymus and gonads
Group of endocrine cells that make up a tissue,
includes; GI tract, digestive tract, placenta, kidneys, skin, pancreas, thymus, gonads, hypothalamus and heart
Endocrine vs Exocrine Glands
hormone is manufactured and then passed into surrounding area, taken up into the bloodstream
Product is excreted into an apical surface/hollow area, has ducts. Part of reproductive, digestive, urinary and respiratory systems
: to coordinate, control and regulate body function (VIA hormones)