Phys: Endocrinology Flashcards

1
Q

pituitary gland is divided into 2 parts

A

adenohypophysis-Ant. pituitary

neurohypophysis- post. pituitary

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2
Q

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

A
anterior
Rathkes Pouch
Hypophysial portal system
Sella turcica
GH; TSH; prolactin; FSH; LH; ACTH;MSH
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3
Q

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

A
posterior
Neural ectoderm
Infundibulum stalk
Sella turcica
ADH; Oxytocin
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4
Q

Oxytocin does what?

A

milk let down
contracts uterus
is stimulated my suckling

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5
Q

Pancreas fxn, hormones, target, effect?

A
regulates blood sugar
Insulin; Glucagon
liver (many others)
dec. blood glucose (insulin)
Inc. blood glucose (glucagon)
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6
Q

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

A

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

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7
Q

Zona glomerulosa fxn, hormones, target, effect?

A

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

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8
Q

Zona fasciculata fxn, hormones, target, effect?

A

regulates blood sugar
glucocrticoids - cortisol
many targets
inc blood glucose

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9
Q

Zona reticularis fxn, hormones, target, effect?

A

secondary sexual charc.
androgens- testosterone
hair follicles
hair growth

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10
Q

adrenal medulla fxn, hormones, target, effect?

A

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

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