Madame L was particularly fascinated to learn about five types of white blood cells (leukocytes), and has pasted images of them below. (Madame L hopes you'll want to read the whole article.)
Each type of leukocyte is present in the blood in different proportions:
neutrophil 50 - 70 %
eosinophil 2 - 4 %
basophil 0,5 - 1 %
lymphocyte 20 - 40 %
monocyte 3 - 8 %
eosinophil 2 - 4 %
basophil 0,5 - 1 %
lymphocyte 20 - 40 %
monocyte 3 - 8 %
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Neutrophils are very active in phagocyting bacteria
and are present in large amount in the pus of wounds.
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| Eosinophils attack parasites and phagocyte antigen-antibody complexes. |
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Basophils secrete anti-coagulant and vasodilatory
substances as histamines and serotonin.
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Lymphocytes are cells which, besides being present in the blood, populate the
lymphoid tissues and organs too, as well as the lymph circulating in the lymphatic vessel.
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Monocytes are the precursors of macrophages.
They are larger blood cells, which after attaining maturity in the bone marrow, enter the
blood circulation where they stay for 24-36 hours.
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1 comment:
I would cyte my cousin Phil: "There's filthy leucour in that boil." My cousin Basil won't let me cyte him. He has a lymph wrist, but he's monogamous.
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