Hypoglossal Nerve

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Related to hypoglossal: glossopharyngeal, hypoglossal canal

hypoglossal nerve

[¦hī·pə¦gläs·əl ′nərv]
The twelfth cranial nerve; a paired motor nerve in tetrapod vertebrates innervating tongue muscles; corresponds to the hypobranchial nerve in fishes.

Hypoglossal Nerve


the 12th pair of cranial nerves. The hypoglossal nerve originates from the nerve cells that form its motor nucleus, which are located in the brain stem at the medulla oblongata. The appendages of the nerve cells unite in ten to 15 rootlets between the pyramid and the olive. Upon merging in a common trunk, they depart from the skull through the hypoglossal canal into the occipital bone. After leaving the skull, the hypoglossal nerve forms an arch and, at the anterior end of the hyoglossal muscle, branches into terminal branches, which innervate the musculature of the tongue. When a disorder of hypoglossal nerve exists, the corresponding half of the tongue becomes paralyzed, and the tongue muscles atrophy.

References in periodicals archive ?
Navigated dorsolateral suboccipital transcondylar (NADOSTA) approach for treatment of hypoglossal schwannoma.
The hypoglossal nerve is the twelfth cranial nerve, and is a pure motor nerve that is involved in the movements of the tongue and infrahyoid muscles.
The sensors detect the inhalation effort of the thorax and transmit the signal to the IPG, which sends electric impulses to the hypoglossal nerve through the electrode.
Other nerves can be involved, such as trigeminal NV (sensory), hypoglossal N XII, and the rest of cranial nerves with their own numbers.
La informacion registrada en la presente revision no sistematizada de la literatura se realizo mediante la busqueda de palabras clave en ingles y espanol: hypoglossal nerve, occipital condyle, tongue palsy, Babinski-Nageotte syndrome, Wallenberg syndrome, ColletSicard syndrome, hypoglossal nucleus, hypoglossal Schwannoma, a traves de los buscadores PubMed y Science Direct, en revistas especializadas de radiologia, neurociencia, neurologia, neurocirugia, cirugia estetica y reconstructiva.
ImThera said that the THN3 Study (Targeted Hypoglossal Neurostimulation Study #3) is a FDA-approved, randomized, controlled, prospective, multi-center clinical trial.
Physical examination confirmed a right hypoglossal nerve palsy but other cranial nerves were intact and there were no signs of myelopathy.
One of the newest treatments for OSA is hypoglossal nerve stimulation, in which a pacemaker-like device implanted in the upper right chest constantly monitors your breathing patterns while you sleep.
Postoperative transient hypoglossal nerve palsy was present in three (1%) patients, of whom two were diabetic and one non-diabetic (p=0.
Anterior part of the occipital condyle presents a canal called as hypoglossal canal or anterior condylar canal, whereas posterior to the occipital condyle, there is a depression known as posterior condylar fossa.
A novel implantable electrical stimulation device stimulates the hypoglossal nerve, which activates the genioglossus muscle, thus moving the tongue forward to open the airway.