Endocrine Glands Flashcards Preview

Honors Anatomy & Physiology > Endocrine Glands > Flashcards

Flashcards in Endocrine Glands Deck (12):
1

Hypothalamus
description? synthesizes how many hormones? function?

link btwn nervous & endocrine systems
synthesizes at least 9 hormones
controls the release of pituitary gland hormones

2

Pituitary gland
consists of what parts?

anterior lobe
posterior lobe

3

infundibulum

attaches pituitary gland to hypothalamus

4

anterior pituitary hormones
function? how are hormones secreted? example? how are hormones suppressed?

synthesizes & secretes hormones for body activities
secretion of hormones stimulated by releasing hormones
EX) thyroid stimulating hormone (TSH)
Suppressing hormone production uses inhibiting hormones

5

Human Growth Hormone (HGH) is located where?

anterior pituitary

6

Human Growth Hormone (HGH)
most abundant ______ hormone
what does it promote? (4)

most abundant Anterior pituitary hormone
promotes synthesis & secretion of small proteins that stimulate:
-protein synthesis
-maintain muscle & bone mass
-help in healing & tissue repair
-help break down fats- used for ATP production

7

Posterior pituitary hormones
description? function? examples?

does not synthesize hormones
stores & releases hormones stored in neurosecretory cells
-oxytocin (birthing)
-antidiuretic hormone (ADH)

8

Antidiurectic Hormone (ADH)
located? regulates what in general? function? how is it produced?

posterior pituitary, regulates fluids & water levels
decreases urine production
-causes kidneys to retain water
amount secreted varies w/ blood osmotic pressure (fluids through a tube)

9

Blood osmotic pressure & ADH
what happens during dehydration? (2) what happens to ADH? then what is caused? (4)

Dehydration: -increased blood osmotic pressure
-decreased blood volume
ADH is released which causes: -kidneys to retain water (don't dehydrate)
-sweat glands to decrease water loss
-arterioles constrict & increase blood pressure
-return to homeostasis

10

Blood osmotic pressure & ADH
what happens during excess water intake? (2) what happens to ADH? then what is caused? (4)

Excess water intake: -decreased blood osmotic pressure
-increased blood volume
Causes inhibition of ADH release: -kidneys retain less water & increase urine output
-sweat glands increase water loss
-arterioles widen & decrease blood pressure (excess-> BP too low, like how that woman died drinking too much)
-return to homeostasis

11

whats the master gland
what does it work closest with?

hypothalamus
nervous system

12

pituitary and hypothalamus connection? similarities?

both release a lot of hormones
hypothalamus secretes to tell pituitary to tell others