The macula densa cells respond to ________.
A) changes in pressure in the tubule
B) aldosterone
C) antidiuretic hormone
D) changes in Na+ content of the filtrate

Question

Quizplus · Accepted Answer

Macula densa cells are specialized cells in the distal convoluted tubule that respond to changes in Na+ content of the filtrate passing through them. When Na+ levels are low, macula densa cells signal the juxtaglomerular cells to release renin, which ultimately leads to an increase in blood pressure.

The Macula Densa Cells Respond to ________