Which of the choices below is the salt level-monitoring part of the nephron?
A) macula densa
B) principal cell
C) vasa recta
D) nephron loop

Question

Quizplus · Accepted Answer

The macula densa is a group of specialized cells located at the point where the thick ascending limb of the nephron loop contacts the afferent arteriole. These cells monitor the concentration of sodium and chloride ions in the filtrate as it flows past them and signal the juxtaglomerular cells of the afferent arteriole to adjust the glomerular filtration rate and release of renin in response to changes in salt levels.

Which of the Choices Below Is the Salt Level-Monitoring Part