There are five different types of white blood cells, also called leukocytes, found in the human bodies. White blood cells all help to defend the body from foreign particles in some way. All white blood cells are produced in red bone marrow, with the special type lymphocytes also being formed in lymphatic tissue. White blood cells are not found in the blood in great numbers, instead they leave the blood and defend in the rest of the tissues of the body
enjoy your day