Views of a Spinal Cord

Different views of a portion of the spinal cord from the cervical region, with the roots of the nerves. A, the anterior surface of the specimen is shown; the anterior nerve root of its right side being divided. B, a view of the right side. C, the upper surface. D, the nerve roots and ganglion are shown from below. Labels: 1, The anterior median fissure; 2, posterior median fissure; 3, anterior lateral depression, over which the anterior nerve roots are seen to spread; 4, posterior lateral groove, into which the posterior roots are seen to sink; 5, anterior roots passing the ganglion; 5’, the anterior root divided; 6, the posterior roots, the fibers of which pass into the ganglion 6’; 7, the united or compound nerve; 7’, the posterior primary branch, seen is A and D to be derived in part from the anterior and in part from the posterior root.

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