Body Fluids and CirculationHard
Question
In mammals, histamine is secreted by
Options
A.fibroblasts
B.histocytes
C.lymphocytes
D.mast cells
Solution
Histamine is a potent vasodilator formed by decarboxylation of the amino acid histidine and released by mast cells in response to appropriate antigens.
MJast cells are especially prevalent in the connective tissue of the skin, respiratory tract and in surrounding blood vessels.
MJast cells are especially prevalent in the connective tissue of the skin, respiratory tract and in surrounding blood vessels.
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