The juxtaglomerular cells of the kidneys secrete:
A)erythropoietin when blood pressure falls
B)renin when blood pressure falls
C)angiotensin I when blood pressure rises
D)angiotensin II when blood pressure rises

Question

Quizplus · Accepted Answer

The juxtaglomerular cells of the kidneys secrete renin when blood pressure falls. Renin then converts angiotensinogen to angiotensin I, which is eventually converted to angiotensin II. Angiotensin II increases blood pressure by causing vasoconstriction and stimulating aldosterone secretion. Erythropoietin is also secreted by juxtaglomerular cells, but in response to low oxygen levels, not low blood pressure.

The Juxtaglomerular Cells of the Kidneys Secrete