Multiple choice

Histamines are secreted by

  1. mast cells

  2. macrophages

  3. kupffer cells

  4. all of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Histamine is primarily stored and released by mast cells (found in connective tissue) and basophils (a type of granulocyte). Macrophages and Kupffer cells are phagocytic cells involved in antigen presentation and debris clearance, not histamine secretion.

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