Hypothalamus-Pituitary

Question 1

Pituitary gland is known as the

Answer 1

master gland

Question 2

anterior lobe grows

Answer 2

upward from roof of the mouth

Question 3

anatomical structures of the anterior lobe include (3 things)

Answer 3

pars distills, pars tubercles, intermedia

Question 4

histology of the anterior lobe include 35% acidophils which are (what two things?)

Answer 4

lactotrophs - prolactin

somatotrophs - growth hormone

Question 5

anatomical structures of the posterior lobe

Answer 5

pars nervosa
infundibular stalk
median eminence

Question 6

blood supply for the anterior lobe comes from the

Answer 6

long portal vessels from medial eminence

Question 7

posterior lobe grows

Answer 7

downward from they hypothalamus

Question 8

TRH comes from the

Answer 8

paraventricular nucleus

Question 9

GnRH comes from the

Answer 9

arcuate nucleus

Question 10

GIH comes from the

Answer 10

anterior hypothalamus

Question 11

PIH comes from the

Answer 11

arcuate nucleus

Question 12

CRH comes from the

Answer 12

paraventricular nucleus

Question 13

GFH comes from the

Answer 13

arcuate nucleus

Question 14

ADH functions

Answer 14

works on kidneys to make aquaporins so water is filtered

alos vasoconstriction

Question 15

oxytocin function

Answer 15

contracts myoepithelial cells of mammary gland

contracts myometrium of uterus

Question 16

chemistry of ADH and oxytocin - they are both

Answer 16

nonapeptides (9aa)

Question 17

ADH and oxytocin are synthesized as

Answer 17

prohormoens

Question 18

ADH is regulated by what 2 things?

Answer 18

plasma volume and sodium

Question 19

decreased plasma volume does what to ADH?

Answer 19

increases ADH

Question 20

increased plasma sodium does what to ADH?

Answer 20

increased ADH

Question 21

increased angiotensin II = what to ADH?

Answer 21

increased ADH

Question 22

ADH is inhibited by what hormone?

Answer 22

atrial nature tic hormone

Question 23

does morphine increase or decrease ADH?

Answer 23

increase

Question 24

does alcohol increase or decrease ADH?

Answer 24

decrease

you don’t maintain your water so you pee

Question 25

action of ADH

Answer 25

increases vascular contraction and increases blood pressure

promotes water reabsorption in renal tubules

Question 26

what increases oxytocin secretion?

Answer 26

suckling
intercoarse
estrogens

Question 27

what increases ADH secretion?

Answer 27

receptor singles through phosphatidylinostiol pathway