What do the white blood cells do?

Answer by  dbmom (38)

White blood cells are made in response to something that the body sees as harmful. If you have an infection, or a virus or bacteria enters your system, the body makes specific types of white blood cells to respond to the intruder.

Answer by  melikaweb (34)

Our immune system is made up of white blood cells. These cells help fight off infections and illnesses. Sometimes, being called the defenders of our body. They are clear in color, and are made in our bone marrow.

Answer by  nanook (605)

The white blood cells are from the immune system and are very important because they defend the body against both infections and foreign materials. FThere are five different types of white blood cells, but they are all produced from a cell found in bone marrow. White blood cells can be found throughout the human body.