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Flashcards in Endocrine Deck (82)
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1

what is humoral control of secretion

blood substance levels (Ca, glucose, Na)

2

what does the hypothalamus control

pineal gland and renal medulla
regulates anterior pituitary

3

what hormones are produced by the hypothalamus

ADH
oxytocin

4

pars nervosa

posterior pituitary

5

supraoptic nucleus

neurons that make ADH in the hypothalamus

6

paraventricular nucleus

neurons that make oxytocin

7

pars distalis

anterior pituitary

8

posterior pituitary hormones

oxytocin
ADH

9

anterior pituitary hormones

TSH
ACTH
FSH/LH
GH
prolactin
endorphins

10

what hormones have inhibitory factors

GH
prolactin

11

where does the posterior pituitary come from

neuroectoderm- hypothalamus outgrowth

12

median eminance

extension of hypothalamus into the posterior pituitary

13

pituitary stalk

infundibulum

14

contents of pars nervosa

unmyelinated axons
herring bodies
pituicytes

15

herring bodies

dilated axon terminals with hormones in secretory vesicles

16

pituicytes

type of glial cell in posterior pituitary

17

diabetes insipidus

insufficient amounts of ADH resulting in large volumes of dilute urine

18

Rathke's pouch

pocket of oral ectoderm that the anterior pituitary comes from

19

neurohypophysis

posterior pituitary

20

adenohypophysis

anterior pituitary

21

pars tuberalis

extension of anterior pituitary next to the infundibular stalk

22

pars intermedias

adjacent to pars nervosa

23

epithelial cysts

remnants of Rathke's pouch in the pars intermedias

24

what does the pars intermediate release

melanocyte secreting hormone
some ACTH

25

melanocyte secreting hormone

stimulates melanin production
skin pigment

26

cell types and appearances in pars distalis

chromophobes- stem cell
acidophils- washed out purple
basophils- intense red

27

pars distalis arrangement

secretory cells in cords around capillaries

28

somatotrophs

release growth hormone

29

GH

stimulates IGF-1 production in liver which induces cell growth and protein synthesis in bone, cartilage and muscle

30

decreased GH

dwarfism