Neutrophils · Histology

The primary (azurophilic) granules of neutrophils are specialized lysosomes that contain which of the following?

  1. Alkaline phosphatase
  2. Myeloperoxidase
  3. Histamine
  4. Major basic protein
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Correct answer: Myeloperoxidase

Primary granules appear early in granulopoiesis and contain myeloperoxidase, which is essential for the generation of reactive oxygen species. They also contain acid hydrolases and defensins.

Difficulty: Medium Question 3 of 20

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