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human physiology > human physiology > Flashcards

human physiology Flashcards

1
Q

Why is the pituitary gland master gland?

A

controls endocrine glans,

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2
Q

infundibulum

A

pituitary galnd- suspended from hypothalamus

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3
Q

sella turcica

A

pituitary gland is in the sella turcica of sphenoid bone

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4
Q

hypophosis

A
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5
Q

adenohypophysis

A

anterior pituitary

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6
Q

neurohypophysis

A

posterior pituitary

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7
Q

anterior pituitary- formed by

A

roof of embryonic mouth, TRUE ENDOCRINE GLAND

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8
Q

posterior pituitary-formed by

A

extension of hypothalamus

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9
Q

neurohemal organ?

A
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10
Q

Supraoptic
paraventricular

A

house cell bodies of neurosecretory neurons whose axons terminals form posterior pituitary gland

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11
Q

pituicyte

A

nuclei axon terminal (glial cells)

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12
Q

posterior pituitary hormones

A

oxytocin, antidiuretic

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13
Q

oxytocin

A

triggers contractions
milk ejection
male paternal behaviors
dilation of cervix, stimulation of nipples and sound of hungry baby crying

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14
Q

antidiuretic

A

increase water reabsorption by kidneys
causes vascontritions of arterioles
arginine vasopresssin

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15
Q

anterior pituitary

A

FSh
LH
ACTH
TSH
prolactin
GH
MSH
Endorphins

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16
Q

ganadotrophs

A

FSH
LH

17
Q

Corticotrophs

A

ACTH
MSH

18
Q

pro-opiomelanocortin

A
19
Q

hypophysiotropic

A

hormones secreted by neurosecretory neurons in hypothalamus
release hormones
stimulate or inhibit the secretion of hormones from anterior pituitary

20
Q

portal vessel system advantages

A

no dilution of hormones
no enzymatic destruction of hormone by liver or lungs

21
Q

thyroid negative feedback loop

A

thyroid hormone inhibits release of TRH by hypothalamus and TSH by anterior pituitary

human physiology (1 decks)

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