Question

A fall in glomerular filtration rate (GFR) activates

• A. Adrenal medulla to release aldosterone.
• B. Adrenal medulla to release adrenaline.
• C. Posterior pituitary to release vasopressin.
• D. Juxta glomerular cells to release renin.

Answer 1

Answer: (D)

A fall in glomerular filtration rate (GFR) activates juxtaglomerular of kidney cells to release renin, which activates the renin-angiotensin-aldosterone system (RAAS), is a signaling pathway responsible for regulating the body's blood pressure. As the blood pressure is regulated the GFR is also regulated.