5. Leukocytes: The White Blood Cells
What are leukocytes? Leukocytes are blood cells that, unlike red blood cells (erythrocytes), do not contain red blood pigment. They therefore appear “white” or colorless. They are therefore also called white blood cells. The main task of leukocytes is to defend the body against pathogens. White blood cells are found in the blood, tissues, mucous … 5. Leukocytes: The White Blood Cells