General

Question 1

What are the 3 zones of adrenal coerex?

Answer 1

Zona golemrulosa: aldosterone (mineralocorticoid)
Zona fasciculata: cortisol (glucocorticoids)
Zone reticularis sex steroids

Question 2

What does aldosterone do?

Answer 2

Aldosterone causes retention of sodium to try to conserve circulating blood volume

Question 3

What causes aldosterone release?

Answer 3

Renin angiotensin system
Kidney releases renin, liver angiotensin and form angiotensin 1
Converted to angiotensin 2 in lungs
Causes release of aldosterone

Question 4

Cortisol: many of its actions do the opposite of ………..

Answer 4

Insulin

Question 5

2 main actions of cortisol?

Answer 5

Enhance protein to glucose breakdown
Reduce inflammatory processes

Question 6

What is a tumor of the renal medulla called?

Answer 6

Phenochromocytoma

Question 7

What are the major effects of adrenaline/noradrenaline?

Answer 7

Gycocoen and fat breakdown, increased cardiac force and rate, vasoconstriction, increased alertness, increased metabolic rate