Chapter 75 - Guyton Flashcards Preview

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Flashcards in Chapter 75 - Guyton Deck (22):
1

Adenohypophysis

anterior pituitary

2

Neurohypophysis

posterior pituitary

3

Adenohypophyseal hormones

ACTH, TSH, FSH, LH, PRL, GH

4

Tells the pituitary to make hormones!

hypothalamus

5

TSH

stimulates production of thyroid hormones

6

GH

stimulates postnatal body growth, secretion of IGF-1, stimulates triglyceride lipolysis, inhibits action of insulin on carbohydrate and lipid metabolism

7

LH

causes ovulation and formation of corpus luteum in the ovary, stimulates production of estrogen and progesterone in ovary, stimulates testosterone production in testis

8

PRL

stimulates lactation

9

FSH

stimulates development of ovarian follicles, regulates spermatogenesis in testis

10

ACTH

stimulates production of glucocorticoids and androgens by the adrenal cortex, maintains size of zona fasciculata and zona reticularis of cortex

11

Hypophysiotropic hormones

TRH, GnRH, CRH, GHRH, somatostatin, PIH

12

Two areas that the anterior pituitary hormones can be regulated.

hypothalamus and anterior pituitary

13

Biological actions of GH.

decrease adiposity, increase LBM, increase protein synthesis, increase organ function, increase chondrocyte function (bone health)

14

Most important factor determining GH secretion.

age

15

Metabolic effects of GH.

increase plasma glucose, free fatty acids, ketoacids, and decrease plasma amino acids

16

Hormones that will facilitate HSL-mediated breakdown of triglycerides in adipose tissue for energy.

GH, cortisol, T3, EPI

17

Hormone that will inhibit HSL-mediated breakdown of triglycerides in adipose tissue for energy.

insulin (also facilitates formation of triglycerides from glucose)

18

T/F Somatostatin inhibits GH release.

true

19

Stimulates GH release.

sleep, exercise, calorie deprivation, fasting, puberty, androgens and estrogens

20

Neurohypophyseal hormones.

ADH, oxytocin

21

Abnormalities of GH secretion.

gigantism, acromegaly, dwarfism

22

Second messenger for vasopressin (ADH).

cAMP