What occurs after stimulation of the macula densa cells?
A) vasodilation of the afferent arteriole
B) vasoconstriction of the afferent arteriole
C) increased GFR
D) secretion of erythropoietin

Question

Quizplus · Accepted Answer

Stimulation of the macula densa cells leads to vasoconstriction of the afferent arteriole, which decreases blood flow into the glomerulus, thereby reducing glomerular filtration rate (GFR). This mechanism helps to regulate blood pressure and maintain homeostasis in the body. It does not involve the secretion of erythropoietin, which is produced by the kidneys in response to hypoxia and regulates red blood cell production.

What Occurs After Stimulation of the Macula Densa Cells