<P> White blood cells ( also called leukocytes or leucocytes and abbreviated as WBCs ) are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders . All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells . Leukocytes are found throughout the body , including the blood and lymphatic system . </P>
<P> White blood cells ( also called leukocytes or leucocytes and abbreviated as WBCs ) are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders . All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells . Leukocytes are found throughout the body , including the blood and lymphatic system . </P>
what type of cells are white blood cells
what type of cells are white blood cells
cells of the immune system
cells of the immune system