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White Blood Cells | White Blood Cells | ||
White blood cells, or leukocytes (also spelled "leucocytes"), are the cells of the immune system that are involved in defending the body against both infectious disease and foreign materials. Five[1] different and diverse types of leukocytes exist, and several types (including monocytes and neutrophils) are phagocytic. All leukocytes are produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. They live for about three to four days in the average human body. Leukocytes are found throughout the body, including the blood and lymphatic system | |||
==Reference== | |||
Wiki | |||
[http://en.wikipedia.org/wiki/White_blood_cell White Blood cell] | |||
Term first found in HGS Manual: Page 49 | Term first found in HGS Manual: Page 49 | ||
[[Category: HGS Manual]] | [[Category: HGS Manual]] |