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JIPMER2011ZoologyStructural Organisation in Animals

In mammals, histamine is secreted by

Options

  1. Afibroblasts
  2. Bhistocytes
  3. Clymphocytes
  4. Dmast cells

Correct answer

D. mast cells

Step-by-step solution

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 which secrete histamine are especially prevalent in the connective tissue of the skin and respiratory tract and in surrounding blood vessels.

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