What is the role of eosinophils in the body?

Eosinophils play a crucial role in the immune system, particularly in combating parasitic infections and participating in allergic reactions. These white blood cells are a type of granulocyte that contains granules rich in enzymes and proteins, which can break down proteins in larger pathogens, such as parasites. When the body encounters these invaders, eosinophils are recruited to the site and can release these substances, helping to neutralize the threat.

In addition to their role in fighting parasites, eosinophils are also involved in the inflammatory response associated with allergic reactions. They can contribute to the tissue response seen in conditions such as asthma and hay fever by releasing mediators that amplify the allergic response and lead to inflammation.

This specialized function distinguishes eosinophils from other types of cells such as red blood cells, which transport oxygen; platelets, which are involved in blood clotting; and B cells, which produce antibodies. Understanding the unique functions of eosinophils is essential for recognizing their contributions to both normal immune responses and pathological conditions.