Cells of the Red Marrow

Red marrow occupies the spaces in the cancellous tissue; it is highly vascular, and this maintains the nutrition of the spongy bone, the interstices of which it fills. Shown are the cells of the red marrow of the the guinea pig. Labels; a, a large cell, the nucleus of which appears to be partly divided into three by constrictions; b, a cell, the nucleus of which shows an appearance of being constricted into a number of smaller nuclei; c, so called giant cell, or myeloplaxe, with many nuclei; d, a smaller myeloplaxe, with three nuclei; e-i, proper cells of the marrow.

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