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)
2
Q
What tissue is the adrenal cortex made of?
A
epithelial
3
Q
What does the adrenal cortex secrete?
A
- steroids only
4
Q
What are the 3 layers of the adrenal cortex?
A
- Zona Glomerulosa
- Zona Fasciculata
- Zona reticularis
5
Q
What is the function of the zona glomerulosa? (2)
A
- secretes mineralocorticoids (mainly aldosterone)
- salt balance
6
Q
What is the function of the zona fasciculata? (2)
A
- secretes glucocorticoids like cortisol
- carb metabolism (glucocorticoids help)
7
Q
What is cortisol?
A
long-term stress hormone
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)
9
Q
what tissue is the adrenal medulla made out of?
A
nervous tissue
10
Q
What are the 2 main hormones in the adrenal medulla?
A
- epinephrine (80%)
- norepinephrine (20%)