Phys: Endocrinology

Question 1

pituitary gland is divided into 2 parts

Answer 1

adenohypophysis-Ant. pituitary

neurohypophysis- post. pituitary

Question 2

Adenohypophysis portion of pituitary, embryology, connection to hypothalamus, location, hormones

Answer 2

anterior
Rathkes Pouch
Hypophysial portal system
Sella turcica
GH; TSH; prolactin; FSH; LH; ACTH;MSH

Question 3

Neurohypophysis portion of pituitary, embryology, connection to hypothalamus, location, hormones

Answer 3

posterior
Neural ectoderm
Infundibulum stalk
Sella turcica
ADH; Oxytocin

Question 4

Oxytocin does what?

Answer 4

milk let down
contracts uterus
is stimulated my suckling

Question 5

Pancreas fxn, hormones, target, effect?

Answer 5

regulates blood sugar
Insulin; Glucagon
liver (many others)
dec. blood glucose (insulin)
Inc. blood glucose (glucagon)

Question 6

Para-thyroid, vitamin D, Thyorid- fxn, hormones, target, effect

Answer 6

all 3 regulate blood calcium
parathormone- pulls Ca++ out (parathyroid)- increases blood ca++/ decrease phosphorus
calcitonin- secreted from parafollicular- dec blood ca++
T3 & T4 from follicular cells- increases phosphorus
target-Bone

Question 7

Zona glomerulosa fxn, hormones, target, effect?

Answer 7

regaulates salt balance
mineralcorticoids- aldosterone
kidney
reabsorb Na+ & secrete K+

Question 8

Zona fasciculata fxn, hormones, target, effect?

Answer 8

regulates blood sugar
glucocrticoids - cortisol
many targets
inc blood glucose

Question 9

Zona reticularis fxn, hormones, target, effect?

Answer 9

secondary sexual charc.
androgens- testosterone
hair follicles
hair growth

Question 10

adrenal medulla fxn, hormones, target, effect?

Answer 10

fight or flight
Medulla; EPI; NE
many targets
inc. HR, inc BP; Inc. blood glucose