The juxtaglomerular apparatus
A) is a combination of specialized tubular and vascular cells at a point where the beginning of the distal tubule comes into intimate contact with the afferent and efferent arterioles of the same nephron.
B) secretes aldosterone.
C) secretes renin.
D) both (a) and (b) above.
E) both (a) and (c) above.

Question

Quizplus · Accepted Answer

The juxtaglomerular apparatus is a combination of specialized tubular and vascular cells located at the point where the beginning of the distal tubule comes into intimate contact with the afferent and efferent arterioles of the same nephron. Its main function is to secrete the enzyme renin, which plays a key role in regulating blood pressure and fluid balance in the body. Therefore, choice E) is the best answer as it highlights the two main functions of the juxtaglomerular apparatus.

The Juxtaglomerular Apparatus