Glomerulus · Histology

Where are extraglomerular mesangial cells (Lacis cells) located?

  1. Between the afferent and efferent arterioles
  2. Inside the glomerular capillary loops
  3. In the wall of the proximal convoluted tubule
  4. Beneath the renal capsule and cortex
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Correct answer: Between the afferent and efferent arterioles

Lacis cells are found in the triangular space between the afferent arteriole, efferent arteriole, and the macula densa. They are part of the juxtaglomerular apparatus and communicate with the intraglomerular mesangial cells.

Difficulty: Medium Question 12 of 20

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