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Endocrinology Exam 1 > Pituitary > Flashcards

Pituitary Flashcards

1
Q

hypothalamus

A

region of brain around 3rd ventricle; make up bottom of 3rd ventricle

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2
Q

pituitary

A

has 2 regions in humans; attached to hypothalamus

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3
Q

anterior pituitary

A

Pars Distalis = Adenohypophysis

front; epithelial cells; not electrically excitable

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4
Q

posterior pituitary

A

Pars Nervosa = Neurohypophysis

back

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5
Q

sella turcica

A

where pituitary gland resides; depression in bone at base of skull

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6
Q

somatotrope

A

GH; influences growth in children and protein metabolism in adults

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7
Q

lactotrope

A

PRL; influence activity of mammary gland and influence reproductive functions in sexes

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8
Q

gonadotrope

A

LH and FSH; influence reproduction in both sexes

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9
Q

thyrotrope

A

TSH; influence activity of thyroid gland and affects metabolic rate

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10
Q

corticotrope

A

ACTH; influence activity of adrenal cortex w/respect to reproduction of steroid cortisol

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11
Q

growth hormone

A

somatotrope

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12
Q

prolactin

A

lactotrope

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13
Q

LH

A

gonadotrope

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14
Q

FSH

A

gonadotrope

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15
Q

TSH

A

thyrotrope

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16
Q

ACTH

A

corticotrope

17
Q

superior pituitary artery

A

branches off from middle cerebral artery; forms capillary bed at median eminence; delivering oxygenated blood to anterior

18
Q

median eminence

A

where capillary bed is formed by SPA

19
Q

pituitary portal vein

A

what capillary bed reforms as; forms 2nd capillary bed; carry blood to another bed

20
Q

ventricles (in CNS)

A

fluid filled chambers in brain; transport system

21
Q

magnocellular neurons

A

big cell body; neuron in hypothalamus; in StAR; project posterior pituitary

22
Q

parvocellular neurons

A

small cell body; neuron in hypothalamus; project to posterior pituitary; secrete releasing factors

23
Q

vasopressin

A

increases water reabsorption at kidney; released by increase in neurons in capillaries in posterior

24
Q

oxycotin

A

influences smooth muscle contraction; released by increase in neurons into capillaries in posterior

25
Q

hypophysiotropic factors

A

releasing factors; influence secretory activity of anterior

26
Q

GHRH

A

GHRH = GH; on

27
Q

SS

A

SS = GH; off

28
Q

DA

A

DA = PRL; off

29
Q

GnRH

A

GnRH = LH and FSH; on

30
Q

TRH

A

TRH = TSH; on

31
Q

CRH

A

CRH = ACTH; on

32
Q

AVP

A

AVP = ACTH; on

Endocrinology Exam 1 (8 decks)

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