THE SPINAL CORD

THE SPINAL CORD.--The spinal cord proceeds from the base of the brain
downward about eighteen inches through a canal provided for it in the
vertebrae of the spinal column. It is composed of white matter on the
outside, and gray matter within. A deep fissure on the anterior side and
another on the posterior cleave the cord nearly in twain, resembling the
brain in this particular. The gray matter on the interior is in the form
of two crescents connected by a narrow bar.


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