What are the two major control mechanisms that regulate the glomerular filtration rate (GFR)?
A)internal regulation and intrinsic parasympathetic control
B)autoregulation and intrinsic sympathetic control
C)internal regulation and extrinsic parasympathetic control
D)autoregulation and extrinsic sympathetic control
E)external regulation and extrinsic parasympathetic control

Question

What are the two major control mechanisms that regulate the glomerular filtration rate (GFR)?​
A)​internal regulation and intrinsic parasympathetic control
B)autoregulation and intrinsic sympathetic control
C)internal regulation and extrinsic parasympathetic control
D)autoregulation and extrinsic sympathetic control
E)​external regulation and extrinsic parasympathetic control

Quizplus · Accepted Answer

The two major control mechanisms that regulate the GFR are autoregulation and extrinsic sympathetic control. Autoregulation refers to the ability of the kidneys to maintain a relatively constant GFR despite changes in systemic blood pressure, while extrinsic sympathetic control refers to the regulation of the GFR by the sympathetic nervous system. Thus, option D is the best choice, as it accurately identifies both mechanisms. Option A is incorrect because there is no intrinsic parasympathetic control of GFR. Option B is incorrect because there is no intrinsic sympathetic control of GFR. Option C is incorrect because there is no extrinsic parasympathetic control of GFR. Option E is incorrect because there is no external regulation of GFR.

What Are the Two Major Control Mechanisms That Regulate the Glomerular