The Renin Angiotensin Aldosterone System Flashcards
1
Q
Where is Renin produced?
A
The Juxtaglomerular apparatus of the kidneys
2
Q
Where is Angiotensinogen produced?
A
The liver
3
Q
When is Renin produced?
A
When there is decreased plasma volume (low BP)
4
Q
What does Renin do?
A
It converts Angiotensinogen into Angiotensin I
5
Q
Where is Angiotensin Converting Enzyme (ACE) produced?
A
In pulmonary endothelium
6
Q
What does ACE do?
A
It converts Angiotensin I into Angiotensin II
7
Q
What are the effects of Angiotensin II on the body?
A
- Vasoconstriction
- ADH release
- Thirst stimulation
- Stimulates the release of aldosterone from the adrenal cortex
8
Q
Where is Aldosterone produced?
A
Zona glomerulosa in the adrenal cortex
9
Q
What does Aldosterone do?
A
Increases Na+ and water reabsorption in the kidneys
10
Q
What leads to an increased plasma volume (increase in BP)?
A
- Vasoconstriction
- ADH release
- Thirst stimulation
- Increased Na+ and water reabsorption in the kidneys
