A student asks the physiology instructor what regulates the flow of fluid into the glomerulus by increasing or decreasing pressure on either side of the glomerulus. What should the instructor respond?
A) The ascending and descending parts of the loop of Henle
B) The arterioles
C) The nephron
D) The venules
B
Feedback:
The two arterioles around the glomerulus work together to closely regulate the flow of fluid into the glomerulus, increasing or decreasing pressure on either side of the glomerulus as needed. The loop of Henle is part of the nephron. The nephron does not regulate blood flow to the glomerulus, and option D is a distracter for this question.
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