Which of the following cells can release heparin and histamine in the blood?
A
Mast cells
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B
Eosinophils
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C
Mast cells and basophils
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D
Eosinophils and mast cells
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Solution
The correct option is B Mast cells and basophils A mast cell is a tissue cell of the immune system of vertebrate animals. It mediates inflammatory responses such as hypersensitivity and allergic reactions. It contains many granules rich in histamine and heparin.
Basophils (white blood cells) also contain anticoagulant heparin and the vasodilator histamine.