Anterior Pituitary Flashcards

1
Q

List the 6 peptide hormones that are produced in the AP

A
  • PRL
  • GH
  • TSH
  • ACTH
  • FSH
  • LH
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2
Q

Which cell type is the most abundant in the anterior pituitary?

A

Somatotroph

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3
Q

Which hormone of the AP stimulates the adrenal cortex?

A

Adrenocorticotropic hormone (ACTH)

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4
Q

What type of hormones are secreted in response to ACTH?

A

Glucocorticoids

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5
Q

Which glucocorticoid is the stress hormone in animals?

A

Corticosterone

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6
Q

Which glucocorticoid is the stress hormone in Humans?

A

Cortisol

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7
Q

Adrenal glands have _____________ tissue where ACTH acts

A

Steriogenic

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8
Q

What metabolisms are affected with ACTH?

A

Carbohydrate and mineral

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9
Q

What stimulates the release of ACTH from the AP?

A

Corticotropin releasing hormone (CRH)

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10
Q

What inhibits CRH?

A

Glucocorticoids

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11
Q

What secretes CRH?

A

Hypothalamus

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12
Q

CRH is secreted in response to what?

A

Stress

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13
Q

Which part of the adrenal gland produces corticosteroids?

A

Adrenal cortex

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14
Q

Corticosteroids are divided into _________________ and __________________.

A

Mineralocorticoids and glucocorticoids

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15
Q

What is the main mineralocorticoid (causes water retention)?

A

Aldosterone

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16
Q

hydrocortisone = ?

17
Q

Which part of the adrenal gland secretes epinephrine and norepinephrine?

A

Adrenal medulla

18
Q

Which glucocorticoid regulates important Cardiovascular, metabolic, immunologic, and homeostatic functions?

19
Q

Adrenal insufficiency can cause:

A
  • hypotension
  • shock
  • death
20
Q

Is cortisol catabolic or anabolic?

A

Catabolic - breaks protein down

21
Q

What is the effect of cortisol in high levels to the immune system?

A

Depresses the immune response

22
Q

ACTH travels to the adrenal gland to stimulate the secretion of?

A

Glucocorticoids

23
Q

Dehydroepiandrosterone (DHEA) is secreted by the ?

A

Adrenal cortex

24
Q

DHEA is converted into _______ and ___________

A

Testosterone and estrogen

25
The two major portions of the adrenal gland are the ____________ and __________
cortex and medulla
26
Which zone of the adrenal cortex produces the mineralocorticoids?
Zona glomerulosa
27
The adrenal cortex, apart from corticoid synthesis, can regulate what concentrations?
Electrolytes in Extracellular fluids