Which of the following types of white blood cells is characterized by the presence of granules in their cytoplasm and plays a key role in defending against parasitic infections and in allergic reactions?
Explanation
Eosinophils are a type of white blood cell that contains granules in their cytoplasm. They play a crucial role in defending against parasitic infections and are involved in allergic reactions, contributing to the inflammation seen in conditions like asthma.
Source
Robbins and Cotran Pathologic Basis of Disease