Topic 18: Endocrine System - Adrenal Glands Flashcards

1
Q

What are the two parts of the adrenal gland?

A
  • adrenal cortex (outer)
  • adrenal medulla (inner)
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2
Q

What tissue is the adrenal cortex made of?

A

epithelial

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3
Q

What does the adrenal cortex secrete?

A
  • steroids only
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4
Q

What are the 3 layers of the adrenal cortex?

A
  1. Zona Glomerulosa
  2. Zona Fasciculata
  3. Zona reticularis
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5
Q

What is the function of the zona glomerulosa? (2)

A
  • secretes mineralocorticoids (mainly aldosterone)
  • salt balance
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6
Q

What is the function of the zona fasciculata? (2)

A
  • secretes glucocorticoids like cortisol
  • carb metabolism (glucocorticoids help)
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7
Q

What is cortisol?

A

long-term stress hormone

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8
Q

what is the function of Zona reticularis? (3)

A
  • secretes androgens and small amounts of testosterone
  • these are for sex drive
  • converted in other tissues (ex. fats to estrogens)
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9
Q

what tissue is the adrenal medulla made out of?

A

nervous tissue

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10
Q

What are the 2 main hormones in the adrenal medulla?

A
  • epinephrine (80%)
  • norepinephrine (20%)
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