TEM of section through bone marrow cells

This image is part of the feature Stem Cells

Credit: DR GOPAL MURTI/SCIENCE PHOTO LIBRARY

Caption: Bone marrow cells. Coloured transmission electron micrograph (TEM) of a section through some bone marrow cells. One red blood cell (erythrocyte, green oval) is seen amongst many white blood cells (leucocytes). Two types of leucocytes are visible: neutrophils have multi-lobed nuclei (brown & blue) and pink cytoplasm, while myelocytes have large nuclei (pink and brown) and blue cytoplasm. Bone marrow occupies the spaces in bone and when active, is dominated by the production of red blood cells. With increasing age, bone marrow becomes less active, and fills up with fat cells. Magnification: x2,000 at 6x7cm size. x6750 at 7.5x9.5".

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Keywords: anatomy, bone marrow, cells, erthyrocyte, human body, myelocyte, neutrophil, red blood cell, white blood cell

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