Juxtaglomerular apparatus consists of macula densa and juxtaglomerular cells. The apparatus becomes active when there is decrease in renal blood pressure or decrease in glomerular filtration rate. There is increased absorption of NaCl in ascending limb or loop of Henle. The decreased NaCl content of filtrate activates cells of macula densa to increase secretion of renin from juxta glomerular cells. Renin convert angiotensinogen to angiotensin peptides.
A fall in glomerular filtration rate (GFR) activates
NEET UG 2012 — Zoology Excretory Products and their Elimination
2012mcqmedium
A fall in glomerular filtration rate (GFR) activates
Official previous-year question
Held on 30 Apr 2012 · Verified 9 Jul 2026.
Options
- A
juxta glomerular cells to release renin
- B
adrenal cortex to release aldosterone
- C
adrenal medulla to release adrenaline
- D
posterior pituitary to release vasopressin
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