Topic 18: Endocrine System - Adrenal Glands

Question 1

What are the two parts of the adrenal gland?

Answer 1

• adrenal cortex (outer)
• adrenal medulla (inner)

Question 2

What tissue is the adrenal cortex made of?

Answer 2

epithelial

Question 3

What does the adrenal cortex secrete?

Answer 3

• steroids only

Question 4

What are the 3 layers of the adrenal cortex?

Answer 4

1. Zona Glomerulosa
2. Zona Fasciculata
3. Zona reticularis

Question 5

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

Answer 5

• secretes mineralocorticoids (mainly aldosterone)
• salt balance

Question 6

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

Answer 6

• secretes glucocorticoids like cortisol
• carb metabolism (glucocorticoids help)

Question 7

What is cortisol?

Answer 7

long-term stress hormone

Question 8

what is the function of Zona reticularis? (3)

Answer 8

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

Question 9

what tissue is the adrenal medulla made out of?

Answer 9

nervous tissue

Question 10

What are the 2 main hormones in the adrenal medulla?

Answer 10

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