adrenal Flashcards

1
Q

center (medulla) of adrenal cortex releases

A

NE, Ep

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2
Q

zona glomerullosa of adrenal cortex releases

A

aldosterone (mineralocorticoid)
* regulates minerals

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3
Q

zona reticularis of adrenal cortex releases

A

androgens and cortisol

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4
Q

zona fasciulata of the adrenal cortex releeases

A

coritsol
* regulates glucose (glucocorticoid)

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5
Q

stimulus for Ep, NE release from adrenal medulla

A

low blood glucose, exercise, cold, pain , anger, stress

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6
Q

function of adrenal medulla release of NE, Ep

A

fight or flight response

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7
Q

Ep and Ne increase

A
  • blood glucose
  • cardiac output
  • ventilation
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8
Q

does NE have longer or shorter lasting effects from adrenal medulla than from neurons at target organ

A

longer

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9
Q

adrenal cortex hormones

A

glucocorticoids, mineralcorticoids, androgens

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10
Q

glucocorticoids regulate

A

glucose

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11
Q

adrenal corticotropic hormone (ATCH) increases

A

cortisol release
size of adrenal cortex

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12
Q

function of cortisol

A
  • increases gluconeogensis (increase blood glucose)
  • anti-inflammatory and immunosuppresive
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13
Q

cortisol is persmissive for Ep, NE…

A

increase number of beta 1 and beta 2 recetpors–> increase NE, EP effects

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14
Q

what cortisol function only occurs during starvation

A

protein -> amino acids
fat –> fatty acids

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15
Q

mineralcorticoids

A

regulates minerals - Na+ and K+
aldosterone

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16
Q

aldosterone release is stimulated by

A
  • increased blood K+
  • decreased blood volume
  • ACTH
17
Q

function of aldosterone

A

increased Na+ reabsorption, increased K+ secretion

18
Q

adrenal androgens cause

A

masculinizing effects

19
Q

types of adrenal androgens

A

dehydroepiandrosterone
androstenedione

20
Q

cushings disease is caused by

A

a tumor that producses excess cortisol

21
Q

if there is increased CRH or ACTh there is a tumor in

A

hypothalamus or anterior pituitary

22
Q

if there is increased cortisol there is a tumor in

A

adrenal cortex

23
Q

what happens if there is a very high increase in cortisol

A

fat repositioning
muscle wasting
increase blood glucose

24
Q

addisons disease is casued by

A

decreased cortisol and usually decreased aldosterone

25
Q

symptoms of decreased cortisol in addison’s disease

A

poor stress response, fatigue, muscle weakness

26
Q

symptoms of decreased aldosterone in addisons disease

A

loss of NA+ from the body
possible increased K+

27
Q

treatment of addisons disease

A

take cortisol and aldosterone

28
Q

excess adrenal androgens means increased

A

DHEA and androstenedione

29
Q

cause of excess adrenal androgens

A

adrenal tumor

30
Q

symptos of excess adrenal androgens

A

inappropriate masculinization in females