Definitions for vagus nerve

This page provides all possible meanings and translations of the word vagus nerve

Princeton's WordNet

  1. vagus, vagus nerve, nervus vagus, pneumogastric, pneumogastric nerve, tenth cranial nerve, wandering nerve(noun)

    a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera

Wiktionary

  1. vagus nerve(Noun)

    Either of the tenth pair of cranial nerves, which extends from the brainstem down into the abdomen. Branches of these important nerves supply the tongue, larynx, lungs, gut, and heart.

Freebase

  1. Vagus nerve

    The vagus nerve, also called pneumogastric nerve and cranial nerve X is the tenth of twelve paired cranial nerves. Upon leaving the medulla between the medullary pyramid and the inferior cerebellar peduncle, it extends through the jugular foramen, then passes into the carotid sheath between the internal carotid artery and the internal jugular vein down below the head, to the neck, chest and abdomen, where it contributes to the innervation of the viscera. Besides output to the various organs in the body, the vagus nerve conveys sensory information about the state of the body's organs to the central nervous system. 80-90% of the nerve fibers in the vagus nerve are afferent nerves communicating the state of the viscera to the brain. The medieval Latin word vagus means literally "wandering". Sometimes the branches are spoken of in the plural and are thus called vagi. The vagus is also called the pneumogastric nerve since it innervates both the lungs and the stomach. The motor division of the vagus nerve is derived from the basal plate of the embryonic medulla oblongata, while the sensory division originates from the cranial neural crest.

U.S. National Library of Medicine

  1. Vagus Nerve

    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).

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