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Unformatted text preview: a promyelocyte , and then differentiates into a basophilic myelocyte. Secrete histamine and a heparin-like molecule in inflammatory reactions Lymphocyte Spherical or indented nucleus, and pale blue cytoplasm 25-30% of all leukocytes (1500 – 3000 cells/ mm 3 ) Come in B and T cell types, produced in lymph tissue. Circulate between the lymph, circulation, lymph, and back again for long Mount immune response by either direct cell attack, or attack by antibodies periods of time. Monocyte U-shaped nucleus, and gray-blue cytoplasm About 9% of leukocytes (100 – 700 cells/mm 3 ) Originate in the marrow, spend up to 20 days in the circulation, then travel to the tissues where they become macrophages . Transform into macrophages in connective tissue (phagocytosis)...
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- Fall '08
- white blood cell, Andrea Zarins, bluepurple cytoplasmic granules