Histamine is in the granules of: Select one or more answers: a. mast cells b monocytes c. basophils d lymphocytes

The correct answers are:<br /><br />a. mast cells<br />c. basophils<br /><br />Explanation:<br />- Mast cells are a type of white blood cell that play a crucial role in the immune system. They contain granules filled with histamine and other chemicals that can be released during an allergic reaction or in response to injury.<br />- Basophils are a type of white blood cell that also contain granules filled with histamine and other chemicals. They are involved in the body's immune response and can release histamine during allergic reactions and inflammation.<br /><br />Monocytes and lymphocytes do not contain histamine in their granules.