During injury, mast cell secrete ______.

histamine

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Solution

Mast cells:
Histamine is released from the mast cells due to the presence of an injury in any individual.
It results in the dilation of the blood vessel allowing more blood to move towards the site of injury.
These cells move inside the connective tissue spaces and are also activated during the presence of an antigen.
Final Answer: During injury, mast cell secrete histamine.

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