Endocrine Glands

Question 1

Hypothalamus

description? synthesizes how many hormones? function?

Answer 1

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

Question 2

Pituitary gland

consists of what parts?

Answer 2

anterior lobe

posterior lobe

Question 3

infundibulum

Answer 3

attaches pituitary gland to hypothalamus

Question 4

anterior pituitary hormones

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

Answer 4

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

Question 5

Human Growth Hormone (HGH) is located where?

Answer 5

anterior pituitary

Question 6

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

Answer 6

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

Question 7

Posterior pituitary hormones

description? function? examples?

Answer 7

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

Question 8

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

Answer 8

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)

Question 9

Blood osmotic pressure & ADH

what happens during dehydration? (2) what happens to ADH? then what is caused? (4)

Answer 9

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

Question 10

Blood osmotic pressure & ADH

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

Answer 10

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

Question 11

whats the master gland

what does it work closest with?

Answer 11

hypothalamus

nervous system

Question 12

pituitary and hypothalamus connection? similarities?

Answer 12

both release a lot of hormones

hypothalamus secretes to tell pituitary to tell others