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Dictionary » L » Leukocyte LeukocyteDefinition noun, plural: leukocytes Any of the blood cells that lack hemoglobin, colourless and with nucleus. Its major function involves the body's immune system, protecting the body against invading microorganisms and foreign particles.
They are produced and derived from a multipotent cell in the bone marrow, called hematopoietic stem cell. They are called white blood cells because when whole blood is centrifuged, these cells separate into a thin layer that is typically white in color. There are two types of leucocytes according to the presence of differently staining granules in their cytoplasm. The granulocytes (also known as polymorphonuclear leucocytes) are leucocytes with very distinctive cytoplasmic granules, e.g. neutrophils, basophils and esoniphils. The second is agranulocytes (mononuclear leucocytes), which are characterized by the lack of apparent granules, e.g. lymphocytes, monocytes and macrophages. Leukocyte count above the normal range indicates inflammation or infection. In adult humans, the normal range is between 4500 and 11 000 per mm3.
Variant: leucocyte (British) Synonyms: Compare: erythrocyte
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Results from our forumRe: Any SOLID arguments against evolution?... Ohio State University. She has published papers in the Journal of Neuroscience, the Journal of Bone and Mineral Research and the Journal of Leukocyte Biology. She is also a member of the American Society for Microbiology, and American Society for Cell Biology, and the Creation Research Society. ...
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Composition of white blood cells.MrMistery is correct. Remember, though, that leukocyte counts vary quite a bit between individuals, and also in one individual between different time points. My own lymphocyte count is usually higher than neutrophil, though this is quite rare in ...
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How many times does a leukocyte need to hit its target?How many times does a leukocyte need to hit its target? The answer to this question is that a leukocyte needs at least 1916 to 2929 collisions to hit its target. This estimation was calculated by the researchers from DreamSciTech Consulting ...
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Successful parasite... not a parasite any more if not make a bad effect to its host B :arrow: may be, because before it makes a big bad damages it has been destroied by leukocyte(for high class of organism, e.g. human) C :arrow: it may happen to all organism( but it's still depend on the parasite species) D :arrow: ...
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its a bit of everything...please help... 1)Erythrocytes-----> about 4-6 millions/mm3. Leukocytes--------->5000-7000 /mm3 Platelets------------> 200000-300000 /mm3. Each type of leukocyte: neutrophil 50 - 70 % eosinophil 2 - 4 % basophil 0,5 - 1 % lymphocyte 20 - 40 % monocyte 3 - 8 % 4) new cell=zygote 46+46= umm.... my maths ...
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