If there is an increase in systemic blood pressure, the resulting stretch of afferent arterioles results in reflexive
A) vasoconstriction of efferent arterioles to raise GFR.
B) vasoconstriction of afferent arterioles to keep GFR normal.
C) vasodilation of efferent arterioles to lower GFR.
D) vasodilation of afferent arterioles to keep GFR normal.

Question

Quizplus · Accepted Answer

The myogenic mechanism responds to increased blood pressure by causing vasoconstriction of the afferent arterioles, which helps maintain a stable glomerular filtration rate (GFR) despite changes in systemic blood pressure.

If There Is an Increase in Systemic Blood Pressure, the Resulting