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Diagrammatic view of the Sympathetic cord of the right side, showing its connections with the principal cerebrospinal nerves and the main prae-aortic plexuses. Cerebrospinal nerves. VI, a portion of the sixth cranial as it passes through the cavernous sinus, receiving two twigs from the carotid plexus of the sympathetic nerve; O, opthalmic ganglion connected by a twig with the carotid plexus; M, connection of the spheno-palatine ganglion by the Vidian nerve with the carotid plexus; C, cervical plexus; Br, brachial plexus; D 6, sixth intercostal nerve; D 12, twelfth; L 3, third lumbar nerve; S 5, fifth; Cr, anterior crural nerve winding round the subclavian artery. Sympathetic Cord. c, superior cervical ganglion; c', second or middle; c", inferior; from each of these ganglia cardiac nerves (all deep on this side) are seen descending to the cardiac plexus; d 1, placed immediately below the first dorsal sympathetic ganglion; d 6, is opposite he sixth; l 1, first lumbar ganglion. Preaortic and Visceral Plexuses. p, pharyngeal, and, lower down, laryngeal plexus; pl, post-pulmonary plexus spreading from the vagus on the back of the right bronchus; c a,on the aorta , the cardiac plexus, towards which , in addition to the cardiac nerves from the three cervical sympathetic ganglia, other branches are seen descending from the vagus and recurrent nerves; co, right or posterior and co1, left or an. coronary plexus; o, esophageal plexus in long meshes on the gullet; sp, great splanchnic nerve formed by branched from the fifth, sixth, seventh, eight, and ninth dorsal ganglia; +, small splanchnic from the ninth and tenth; ++, smallest or third splanchnic from the eleventh: the first and second of theses are shown joining the solar plexus, s o; the third descending to the renal plexus, r e; connecting branches between the solar plexus and the vagi are also represented; pn', above the place where the right vagus passes to the lower or posterior surface of the stomach; pn", the left distribution on the anterior side or upper surface of the cardiac portion of the organ: from the solar plexus large branches are seen surrounding the arteries of the coeliac axis, and descending from the solar and sup. mesenteric plexuses and from the lumbar ganglia; mi, the inf. mesenteric plexus surrounding the corresponding artery; hy, hypogastric plexus; pl, the right pelvic or inf. hypogastric plexuses; pl, the right pelvic plexus; from this the nerves descending are joined by those from the plexus on the sup. hemorrhoidal vessels, mi', by nerves from the third and fourth sacral spinal nerves, and there are thus formed the rectal, vesical, and other plexuses, which ramify upon the viscera, ,as towards ir, and v, the rectum and bladder.

Sympathetic System

Diagrammatic view of the Sympathetic cord of the right side, showing its connections with the principal…