Nerves of the Alimentary Canal

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Diagrammatic representation of the nerves of the alimentary canal. Oe to Rct, the various parts of the alimentary canal from esophagus to rectum: L.V, left vagus, ending in front of stomach; rl, recurrent laryngeal nerve, supplying upper part of esophagus; R.V, right vagus, joining left vagus in esophageal plexus;, supplying the posterior part of the stomach , and continues at R’V’ to join the solar plexus, here represented by a single ganglion, and connected with the inferior mesenteric ganglion a, branches from the solar plexus to stomach and small intestine , and from the mesenteric ganglia and rami communicantes; r.c., belonging to dorsal nerves from the 6th to the 9th (or 10th); Spl.min., small splanchnic nerve similarly from the 10th and 11th dorsal nerves. These both join the solar plexus, and thence make their way to the alimentary canal; c.r., nerves from the ganglia, &c., belonging to 11th and 12th dorsal and 1st and 2nd lumbar nerves, proceeding to the inferior mesenteric ganglia (or plexus),, and thence by the hypogastic nerve, n.hyp., and the hypogastric nerve, n.hyp., and the hypogastric plexus, pl.hyp., to the circular muscles of the rectum; 1.r., nerves from the 2nd and 3rd sacral nerves, S.2, S.3 (nervi erigentes) proceeding by the hypogastric plexus to the longitudinal muscles of the rectum.


Baker, W. Morrant & Harris, Vincent Dormer Kirkes' Hand-book of Physiology, 13th ed. (Philadelphia: P. Blakiston's Son & Co., 1892) 349


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