Light microscopy of motor neurons in spinal cord grey matter. The cell bodies of motor neurons show a central nucleus and peripheral cytoplasm (deep purple). In histologic sections processes of dendrites and an axon extend from each cell body. In humans one such axon may be a metre in length if supplying the foot. Tissue between the cell bodies is called the neuropil and is formed of intermingling dendrites, axons, capillaries and glial cells. Magnification x100 when narrow width printed at 10 cm.
July 29th, 2016
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