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Histology Post Midterm > Endocrine organs > Flashcards

Endocrine organs Flashcards

1
Q

the pituitary gland is derived from

A

oropharynx ectoderm & neuroecotoderm

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2
Q

describe acidophils of anterior pituitary gland

A

somatotropes- 50% of anterior, secrete GH, inhibited by somatostatin. mammotropes- 15-20% of anterior, secrete prolactin, inhibited by dopamine

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3
Q

what are tropic hormones

A

hormones that act on other endocrine glands

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4
Q

what do gonadaltropes secrete

A

FSH and LH

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5
Q

what do cortiotropes secrete

A

ACTH

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6
Q

what do thryotropes secrete

A

TSH

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7
Q

basophilic cells of anterior pituitary secrete

A

FSH, LH, ACTH, TSH. (b-F.L.A.T.)

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8
Q

alternate name for posterior pituitary

A

neurohypophysis

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9
Q

axon dilations in the posterior pituitary where hormones produced in the hypothalamus are stored

A

herring bodies

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10
Q

nucleus that produces ADH

A

supraoptic

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11
Q

paraventricular nucleus produces

A

oxytocin

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12
Q

adrenal gland cortex develops from

A

mesoderm

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13
Q

adrenal gland medulla develops from

A

neural crest

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14
Q

3 zones of adrenal cortex

A

glomerulosa, fasiculata, reticularis.

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15
Q

zona glomerulosa secretes

A

mineral corticoid- aldosterone

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16
Q

zona fasiculata secretes (also spongiosum)

A

glucocorticoid- cortisol

17
Q

2 cell types in adrenal medulla

A

chromaffin and ganglion cells

18
Q

chromaffin cells are modified…

A

post ganglionic sympathetic neurons

19
Q

chromaffin cells secrete

A

catecholamines into fenestrated capillaries

20
Q

proteins that bind catecholamines

A

chromograinins. give off brown color

21
Q

axonal processes that extend into adrenal cortex and modulate secretion & innervate blood vessels

A

ganglion cells

22
Q

secretes PTH

A

chief cells

23
Q

pinealocytes secrete

A

melatonin

24
Q

type of capillaries in endocrine organs

A

fenestrated

25
Q

zona reticularis secretes

A

androgens (DHEA) & androstendione

26
Q

projection of tissue that is derived from oropharpharynx that makes up anterior pituitary is called

A

rathkes pouch

27
Q

disorder resulting from lack of ADH

A

diabetes insipidus

28
Q

adrenal cortex cells are derived from

A

intermediate mesoderm

29
Q

innervation of adrenal medulla

A

preganglionic sympathetics

30
Q

prevents early puberty

A

melatonin

31
Q

cells that produce calcitonin

A

parafollicular cells of thyroid. (surrounded by stroma) also called C-cells

32
Q

parathyroid gland is derived from

A

3rd and 4th pharyngeal pouch

33
Q

difference between cushings disease and syndrome

A

cushings disease is a problem with ACTH production in pituitary. syndrome is a problem with adrenal gland (tumor)

Histology Post Midterm (5 decks)

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