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Recurrent laryngeal nerve information


Recurrent laryngeal nerve
A diagram showing the recurrent laryngeal nerve
Course of the left recurrent laryngeal nerve
A diagram showing lymph glands and the recurrent laryngeal nerve
Posterior view of tracheal and bronchial lymph glands, with the left and right recurrent nerves visible on either side.
Details
FromVagus nerve
InnervatesLarynx
posterior cricoarytenoid
lateral cricoarytenoid
arytenoid
thyroarytenoid
aryepiglottis
esophagus
heart
trachea
inferior pharyngeal constrictor muscle
Identifiers
Latinnervus laryngeus recurrens
MeSHD012009
TA98A14.2.01.166
TA26344
FMA6246
Anatomical terms of neuroanatomy
[edit on Wikidata]

The recurrent laryngeal nerve (RLN) is a branch of the vagus nerve (cranial nerve X) that supplies all the intrinsic muscles of the larynx, with the exception of the cricothyroid muscles. There are two recurrent laryngeal nerves, right and left. The right and left nerves are not symmetrical, with the left nerve looping under the aortic arch, and the right nerve looping under the right subclavian artery then traveling upwards. They both travel alongside the trachea. Additionally, the nerves are among the few nerves that follow a recurrent course, moving in the opposite direction to the nerve they branch from, a fact from which they gain their name.

The recurrent laryngeal nerves supply sensation to the larynx below the vocal cords, give cardiac branches to the deep cardiac plexus, and branch to the trachea, esophagus and the inferior constrictor muscles. The posterior cricoarytenoid muscles, the only muscles that can open the vocal folds, are innervated by this nerve.

The recurrent laryngeal nerves are the nerves of the sixth pharyngeal arch. The existence of the recurrent laryngeal nerve was first documented by the physician Galen.

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The superior laryngeal nerve is a branch of the vagus nerve. It arises from the middle of the inferior ganglion of vagus nerve and additionally also receives...

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to the recurrent laryngeal nerve would cause this condition. It is also worth noting that all muscles are innervated by the recurrent laryngeal branch...

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and laryngeal nerve crush. Recurrent laryngeal nerve resection involves removing a section of the recurrent laryngeal nerve. Recurrent laryngeal nerve avulsion...

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paresis, also known as recurrent laryngeal nerve paralysis or vocal fold paralysis, is an injury to one or both recurrent laryngeal nerves (RLNs), which...

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Posterior cricoarytenoid muscle

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arytenoid cartilage of the same side. It is innervated by the recurrent laryngeal nerve. Each acts to open the vocal folds by pulling the vocal fold of...

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Inferior thyroid artery

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laryngeal artery The inferior laryngeal artery - accompanied by the recurrent laryngeal nerve - passes superior-ward upon the trachea deep to the inferior pharyngeal...

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Thyroid

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receives parasympathetic nerve supply from the superior laryngeal nerve and the recurrent laryngeal nerve. There are many variants in the size and shape of...

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Parasympathetic nervous system

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vagus nerve as it enters the thorax. One nerve is the recurrent laryngeal nerve, which becomes the inferior laryngeal nerve. From the left vagus nerve the...

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Common carotid artery

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jugular vein and vagus nerve. At the lower part of the neck, on the right side of the body, the right recurrent laryngeal nerve crosses obliquely behind...

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Arytenoid muscle

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recurrent laryngeal nerve. Continuous electromyography of the arytenoid muscle can provide confidence to surgeons that the recurrent laryngeal nerve is...

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Pharynx

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epithelium. It is innervated by the pharyngeal plexus and by the recurrent laryngeal nerve. The vascular supply to the laryngopharynx includes the superior...

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Giraffe

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nerve, then branches off into the recurrent laryngeal nerve which passes back up the neck to the larynx. Thus, these nerve cells have a length of nearly 5 m...

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Pharyngeal plexus of vagus nerve

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innervation from the vagus nerve (CN X) via its external branch of the superior laryngeal nerve and its recurrent laryngeal nerve, and not through the pharyngeal...

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Lateral cricoarytenoid muscle

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cartilage of the same side posteriorly. It is innervated by the recurrent laryngeal nerve. It acts to close the rima glottidis, thus closing the airway...

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Mediastinum

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into the left and right main bronchi. The left recurrent laryngeal nerve branching off the left vagus nerve and hooking under the ligamentum arteriosum between...

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Superior cardiac nerve

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external laryngeal nerve; lower down, one or two twigs from the vagus; and as it enters the thorax it is joined by a filament from the recurrent laryngeal nerve...

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Aryepiglottic muscle

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innervated by the inferior laryngeal nerve, a branch of the recurrent laryngeal nerve (itself a branch of the vagus nerve). The muscle adducts arytenoid...

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Inferior pharyngeal constrictor muscle

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plexus, the recurrent laryngeal nerve, the external branch of the superior laryngeal nerve, or a combination of these (the recurrent laryngeal nerve being the...

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Cranial nerves

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of its branches, the recurrent laryngeal nerve. Damage to this nerve may result in difficulties swallowing. The accessory nerve (XI) supplies the sternocleidomastoid...

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Evidence of common descent

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free and is used to grip. The recurrent laryngeal nerve is a fourth branch of the vagus nerve, which is a cranial nerve. In mammals, its path is unusually...

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Paratracheal lymph nodes

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neck situated lateral to the trachea and esophagus alongside the recurrent laryngeal nerve. They drain to the deep cervical lymph nodes. "paratracheal lymph...

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Pancoast tumor

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the brachiocephalic vein, subclavian artery, phrenic nerve, recurrent laryngeal nerve, vagus nerve, or, characteristically, compression of a sympathetic...

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Thyroidectomy

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ten years.[citation needed] Laryngeal nerve injury in about 1% of patients, in particular the recurrent laryngeal nerve: Unilateral damage results in...

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Thyroid disease

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identifying the nerve or utilizing intraoperative neuroimaging during surgery, when trying to prevent injury to recurrent laryngeal nerve during thyroid...

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Hyperthyroidism

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identifying the nerve or utilizing intraoperative neuroimaging during surgery, when trying to prevent injury to recurrent laryngeal nerve during thyroid...

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Swallowing

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The aryepiglotticus (recurrent laryngeal nerve of vagus) contracts, causing the arytenoids to appose each other (closes the laryngeal aditus by bringing...

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