What is mast cell degranulation?
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Mast cells are part of the immune system. They keep lots of *granules* inside them, which are little pockets packed with a whole bunch of chemicals; some of them toxic and damaging, some of them messengers to other cells and components of the immune system.
When a mast cell [moves a granule to its own outer membrane and expels the contents outwards](https://webpath.med.utah.edu/jpeg2/IMM034.gif), that’s degranulation.
Mast cells are part of the immune system. They keep lots of *granules* inside them, which are little pockets packed with a whole bunch of chemicals; some of them toxic and damaging, some of them messengers to other cells and components of the immune system.
When a mast cell [moves a granule to its own outer membrane and expels the contents outwards](https://webpath.med.utah.edu/jpeg2/IMM034.gif), that’s degranulation.
Mast cells are part of the immune system. They keep lots of *granules* inside them, which are little pockets packed with a whole bunch of chemicals; some of them toxic and damaging, some of them messengers to other cells and components of the immune system.
When a mast cell [moves a granule to its own outer membrane and expels the contents outwards](https://webpath.med.utah.edu/jpeg2/IMM034.gif), that’s degranulation.
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