PNEUMOGASTRIC NERVES
\njˌuːməɡˈastɹɪk nˈɜːvz], \njˌuːməɡˈastɹɪk nˈɜːvz], \n_j_ˌuː_m_ə_ɡ_ˈa_s_t_ɹ_ɪ_k n_ˈɜː_v_z]\
Definitions of PNEUMOGASTRIC NERVES
- 2010 - Medical Dictionary Database
- 1898 - Warner's pocket medical dictionary of today.
- 1846 - Medical lexicon: a dictionary of medical science
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The 10th cranial nerve. The vagus is a mixed nerve which contains somatic afferents (from skin in back of the ear and the external auditory meatus), visceral afferents (from the pharynx, larynx, thorax, and abdomen), parasympathetic efferents (to the thorax and abdomen), and efferents to striated muscle (of the larynx and pharynx).
By DataStellar Co., Ltd
By William R. Warner
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So called because it is distributed especially to the organs contained in the chest and abdomen. This nerve arises from behind the eminentiae olivariae and near the corpora restiformia by one or two rows of filaments, regularly arranged. These filaments unite to form a flat cord, which issues from the cranium by the foramen lacerum posterius; behind the glosso-pharyngeal nerve. At its exit from the cranium, the pneumogastric nerve has the appearance of a very compact plexus- Plexus gangliform'is. Ganglion of the superior laryngeal branch, of Sir Astley Cooper. It then descends along the neck, deeply seated on the outside of the carotid artery and the internal jugular vein. When it has attained the lower part of the neck, it enters the chest, gliding behind the subclavian vein, and passing on the right side, in front of the subclavian artery, and, on the left, before the arch of the aorta. It proceeds, at first, backwards, increasing in size. Afterwards, it passes from behind the bronchia to the oesophagus, which it accompanies through the diaphragm, and terminates on the stomach. In the neck, the pneumogastric nerve anastomoses with the spinal, glosso-pharyngeal, great hypo-glossal, and great sympathetic nerves; and furnishes, 1, a pharyngeal branch, 2, a superior laryngeal, 3, cardiac branches. In the chest, it gives off, 1, the inferior laryngeal, or recurrent, 2, the pulmonary plexus, and, 3, the oesophageal branches. On entering the abdomen, the oesophageal branches, which terminate the pneumogastric, are distributed upon the stomach, and give numerous filaments to that viscus, to the hepatic, coeliac, gastro-epiploic, and solar plexuses. Some go, also, to the pancreas, liver, gallbladder, duodenum, &c.
By Robley Dunglison
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