Question

multiple choice question
which is a component of the juxtaglomerular apparatus?
o collecting tubule
o macula densa
o capsular space

Explanation:

The juxtaglomerular apparatus is composed of the juxtaglomerular cells (modified smooth muscle cells of the afferent arteriole), the macula densa (a part of the distal convoluted tubule with closely packed cells that monitor the sodium - chloride concentration in the filtrate), and extraglomerular mesangial cells. The collecting tubule is not part of the juxtaglomerular apparatus. The capsular space is the space between the parietal and visceral layers of Bowman's capsule and is not a component of the juxtaglomerular apparatus.

Answer:

macula densa