What are some functions of basophils?

Basophils are a type of white blood cell that are involved in the body's immune response. They are the least common type of white blood cell, making up only about 0.5% of all white blood cells. Basophils are found in the blood, bone marrow, and spleen.

Basophils have several functions, including:

* Releasing histamine and other inflammatory mediators: When basophils are activated, they release histamine and other inflammatory mediators that cause blood vessels to dilate and become more permeable. This allows more fluid and immune cells to flow into the area of infection or injury.

* Promoting the activation of other immune cells: Basophils can also release cytokines that promote the activation of other immune cells, such as eosinophils and neutrophils.

* Participating in allergic reactions: Basophils are involved in the development of allergic reactions. When an allergen enters the body, basophils release histamine and other inflammatory mediators that cause the symptoms of an allergic reaction, such as sneezing, runny nose, and watery eyes.

* Fighting parasitic infections: Basophils can also play a role in fighting parasitic infections. They can release toxic substances that can kill parasites.

Basophils are an important part of the body's immune response. They help to protect the body from infection and injury.