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<i>Micrococcus antarcticus</i> - psychrophilic (cold tolerant) bacterium
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Image #   63433B
Name:   Human erythroblast
Copyright:   Copyright 2000 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Human polychromatic erythroblast. The stage in erythrocyte (red blood cell) development where the erythroblast possesses a nucleus and contains hemoglobin. The cell will lose the nucleus and become a reticulocyte (a large, immature red blood cell with retention of portions of the nucleus). In the process of red blood cell formation, a cell undergoes a series of 7 differentiations in the bone marrow. In all of these stages the developing red blood cells have a nucleus. Upon reaching the 7th stage, called a reticulocyte, the red blood cells have extruded their nucleus. The reticulocytes are released in to the blood stream where they become mature red blood cells. The mature red blood cells survive for 100-120 days and are still capable of producing hemoglobin. Red blood cells of most all other vertebrates have a nucleus.
Magnification*: x1,635
Type: TEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   63433B human body blood erythroblast polychromatic red blood cell erythrocyte human hemoglobin nucleus reticulocyte TEM

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