mast cells

Edited by: Joe Hing Kwok Chu

Cells found in connective tissue that contains many basophilic granules rich in histamine and heparin sulfate.  They release histamine and heparin reacting to injuries and cause the immediate reddening and weal of the skin. They are very similar to basophils and possibly derived from the same stem cells.

There are two types of mast cells: those from connective tissue and a distinct set of mucosal mast cells which are T cell dependent on their activities.

Source: OMD

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