RAAS Flashcards
1
Q
Activated first before RAAS
A
Baroreceptor reflex
2
Q
It senses DECREASE in NaCl delivery in the DCT
A
MACULA DENSA
~ it stimulates JUXTAGLOMERULAR (JG) Cells aka GRANULAR cells to release RENIN
3
Q
It converts Liver ANGIOTENSINOGEN TO ANGIOTENSIN I
A
RENIN
4
Q
It converts Angiotensin I to Angiotensin II
A
LUNG ACE
5
Q
What are the 6 effects of ANGIOTENSIN II
A
- Maintains normal GFR
- Vasoconstricts systemic arterioles — INC TPR
- Stimulates ALDOSTERONE secretion
- INC Na+-H+ exchange in the PCT — Contraction alkalosis
- INC thirst and ADH secretion — INC intravascular volume
- INC EPI, NE, CORTISOL secretion — vasoconstricts arterioles
6
Q
3 Aldosterone effects on the Kidneys
A
- Na+ reabsorption
- K+ secretion
- H+ secretion
