Q. RAAS
A) Is triggered when juxta-glomerular cells of JGA releases renin in response to various stimuli
B) Is responsible for regulation of kidney function
C) Is a powerful mechanism responsible for regulation of functioning of heart
D) Both (a) and (b)
Explanation
Both (a) and (b). Juxta-glomerular apparatus (JGA) operates a multihormonal Renin-angiotensin-Aldosterone System (RAAS. JGA release an enzyme renin in the blood, which initiates chemical reactions that produces angiotensin-II, a potential stimulator of aldosterone (mineralocorticoids) release by the glomerulosa cell. It increases blood pressure, blood volume and completes the feedback circuit by supporting the release of renin
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.