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mast cell

A Dictionary of Zoology | 1999 | | © A Dictionary of Zoology 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

mast cell A connective tissue cell which, on becoming injured at a site of tissue damage, releases certain chemicals. Some of these cause a restriction of lymph vessels, thus allowing localized swelling to occur. Another, called histamine, increases capillary permeability, allowing leucocytes to leave the circulatory system more readily and to congregate at the site of injury.

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