Adrenal gland physiology

Question 1

What does the Zona Glomerulosa make?

Answer 1

Mineralocorticoids such as aldosterone

Question 2

What does the Zona Fasciculata make?

Answer 2

Glucocorticoids such as cortisol

Question 3

What does the Zona Reticularis make?

Answer 3

Androgenic steroids (sexual maturity)

Question 4

What type of hormones are adrenocortical hormones?

Answer 4

Steroid

Question 5

What are all adrenocortical hormones made from?

Answer 5

Cholesterol

Question 6

What does cortisol do to the body?

Answer 6

Stimulates release of amino acids

Stimulates lipolysis

Stimulates gluconeogenesis

Increases blood glucose levels in response to stress

Strengthens cardiac muscle contraction

Question 7

Name the most important androgens?

Answer 7

Testosterone

Dihydrotestosterone

Question 8

What does the adrenal medulla secrete?

Answer 8

Adrenaline and noradrenaline

and a small amount of dopamine when stimulated

Question 9

What do adrenaline and noradrenaline do?

Answer 9

Increased heart rate and blood pressure

Blood vessel constriction in the skin and GI tract

Smooth muscle (bronchiole and capillary) dilation

Increased metabolism

Fight-or-flight response.