Leukocyte

A leukocyte is a white blood cell. The main function of the leukocytes is mediation of the immune reactions. The number of leukocytes in a healthy adult is  4–9 ·109/l of blood, in newborns is up to 20 x109/l. The white cell count most often increases in inflammations or in infectious diseases. Leukocytes are divided into:


 * 1) granulocytes – neutrophils, eosinophils and basophils
 * 2) agranulocytes – lymphocytes and monocytes.

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