Microbiology 435

Leukocytes

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Hematopoiesis

Granulocytes

Agranulocytes

Abnormalities

Erythrocytes

Thrombocytes

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Leukocytes are one of the three cellular types found in the blood.

A normal, healthy adult will have 5000 - 10,000/uL (5-10 x 109/L=5,000,000,000 -10,000,000,000/L) leukocytes in the circulating pool at any given time.

The function of all leukocytes is to provide our body with defenses against foreign invaders. Each type of leukocyte accomplishes this in a different manner.

Types of Leukocytes:

granulocytes

  • neutrophils
  • eosinophils
  • basophils

agranulocytes (nongranulocytes)

  • monocytes/macrophages
  • lymphocytes