Kidney Histology · Histology

What is the primary function of mesangial cells in the glomerulus?

  1. Filter plasma into Bowman's space
  2. Support and regulate glomerular capillaries
  3. Secrete renin for blood pressure regulation
  4. Reabsorb filtered solutes back into the bloodstream
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Correct answer: Support and regulate glomerular capillaries

Mesangial cells provide structural support to glomerular capillaries and regulate blood flow within the glomerulus. They also help remove debris through phagocytic activity.

Difficulty: Medium Question 10 of 20

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