What do mast cells secrete during an injury?

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(A) Mast cells are specialized cells of the connective tissue that play a crucial role in the inflammatory response. During an injury or an allergic r

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Histamine

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(A) Mast cells are specialized cells of the connective tissue that play a crucial role in the inflammatory response. During an injury or an allergic reaction,mast cells release chemical mediators such as histamine,serotonin,and heparin. Histamine is a vasodilator that increases blood flow to the site of injury,causing redness and swelling,which helps in the recruitment of immune cells to the affected area. Therefore,histamine is the primary substance secreted by mast cells during an injury to initiate the inflammatory process.

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