vagus nerve


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

vagus nerve

 [va´gus]
the tenth cranial nerve; it has the most extensive distribution of the cranial nerves, serving structures of the chest and abdomen as well as the head and neck. Its afferent fibers serve the mucous membrane of the larynx, trachea, bronchi, lungs, arch of the aorta, esophagus, and stomach. Some of the functions affected by this nerve are coughing, sneezing, reflex inhibitions of the heart rate, and the sensation of hunger. Its motor fibers are concerned with swallowing, speech, peristalsis, and secretions from the glands of the stomach and the pancreas and contractions of the trachea, bronchi, and bronchioles. See Appendix 3-5.

vagus nerve

n.
Either of the tenth and longest of the cranial nerves, passing through the neck and thorax into the abdomen and supplying sensation to part of the ear, the tongue, the larynx, and the pharynx, motor impulses to the vocal cords, and motor and secretory impulses to the abdominal and thoracic viscera. Also called pneumogastric nerve.

vagus nerve

[vā′gəs]
Etymology: L, vagus, wandering, nervus, nerve
either of the longest pair of cranial nerves mainly responsible for parasympathetic control over the heart and many other internal organs, including thoracic and abdominal viscera. The vagus nerves communicate through 13 main branches, connecting to four areas in the brain. Also called nervus vagus, pneumogastric nerve, tenth cranial nerve.
enlarge picture
Vagus nerve

vagus nerve

the 10th cranial nerve of vertebrates that arises on the side and floor of the brain MEDULLA and supplies the pharynx, vocal cords, lungs, heart, oesophagus, stomach and intestine. In the vocal cords and lungs it has a sensory function, but elsewhere in the parasympathetic nervous system (see AUTONOMIC NERVOUS SYSTEM it has a motor function including inhibition of the heartbeat.

Vagus nerve

A cranial nerve, that is, a nerve connected to the brain. The vagus nerve has branches to most of the major organs in the body, including the larynx, throat, windpipe, lungs, heart, and most of the digestive system.
Mentioned in: Fainting, Ulcer Surgery
References in periodicals archive ?
ElectroCore, which is based in New Jersey, is focused on developing non-invasive Vagus Nerve Stimulation (nVNS) self-administered therapies for the treatment of multiple conditions in neurology, psychiatry, gastroenterology and respiratory fields.
The vagus nerve stimulator improves seizure control by reducing the frequency and severity of seizures.
In May, CMS issued its final decision, stating that "there is sufficient evidence to conclude that vagus nerve stimulation is not reasonable and necessary for treatment of resistant depression.
The left vagus nerve gives rise to the left recurrent laryngeal nerve as the vagus nerve descends just lateral and anterior to the arch of the aorta.
Approved in 1997, VNS therapy utilizes a small generator implanted in the chest and connected to electrodes attached to the vagus nerve in the neck.
Although the mechanism of action is not completely understood, two controlled, randomized, double-blind studies have shown that vagus nerve stimulation (VNS) is safe, effective, well tolerated, and easy to use in patients 12 years of age and older who have long-standing, medically refractory, partial onset epilepsy.
The INOVATE-HF study is an important pivotal trial that may ultimately position vagus nerve stimulation as a valuable new therapeutic option for patients with HF," said Dr.
With outposts in nearly every organ and a direct line into the brain stem, the vagus nerve is the nervous system's superhighway.
A twelve-month open-label study in the March issue of the journal Neurology, reports that electroCore's non-invasive Vagus Nerve stimulation (nVNS) device, gammaCore, is practical and effective as an acute and preventative treatment in cluster headache.
com/research/t8phw5/the_world_market) has announced the addition of the "The World Market for Neurostimulation Devices (TENS, Carotid Sinus Nerve, Cochlear Implant, Deep Brain, Gastric Electrical, Phrenic Nerve, Sacral Nerve, Spinal Cord, Vagus Nerve, TMS, TNS and Other Stimulation Devices)" report to their offering.
Contract notice: Deliveries stimulators to treat epilepsy lekooprnej with lease timer to the vagus nerve stimulator.
A permanently implanted device thought to reduce hunger pangs by delivering electrical pulses to the intra-abdominal vagus nerve could be the next treatment approved for treating obesity, considering a Food and Drug Administration advisory panel's positive vote.