Spinal Cord
Diagrammatic view from before of the spinal cord and medulla oblongata, including the roots of the spinal and some of the cranial nerves, and on one side of the gangliated chain of the sympathetic. The spinal nerves are enumerated in order on the right side of the figure. Labels: Br, brachial plexus; Cr, anterior crural, O, obturator, and Ss, great sciatic nerves, coming off from lumbo-sacral plexus; x, x, filum terminale; a,b,c, superior, middle, and inferior cervical ganglia of the sympathetic, the last united with the first thoracic, d; d’, the eleventh thoracic ganglion; l, the twelfth thoracic (or first lumbar); below ss, the chain of sacral ganglia.
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Human Central Nervous SystemSource
Martin, H. Newell The Human Body: A Text-book of Anatomy, Physiology and Hygiene (New York: Henry Holt and Company, 1900) 235
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