What Are White Blood Cells?
Reviewed: Dr. Gromatzky
2. Neutrophils
White blood cells perform a very different function than red blood cells. Their function is to protect the body against invaders, while they also help in keeping the body clean. The most numerous type of white blood cells are neutrophils, and these make up around half of all white blood cells in our bodies.
Neutrophils are the first responders of the body. They get to the front line as soon as an invader is detected and they send out chemical signals to alert other white blood cells to go to the scene. Around 100 billion of these are produced every day, but they have a life of around 13 to 20 days. Pus is made of mostly of these cells.
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