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In mammals, histamine is secreted by

Home » Advanced Zoology » Body Fluids and Circulation » Question
  1. In mammals, histamine is secreted by
    1. histiocytes
    2. lymphocytes
    3. mast cells
    4. fibroblasts
Correct Option: C

Histamine is a potent vasodilator formed by decarboxylation of the amino acid histidine and released by mast cells in response to appropriate antigens. Mast cells are especially prevalent in the connective tissue of the skin and respiratory tract and in surrounding blood vessels.



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