Sources
Help build the largest human-edited directory on the web.
Submit a site - Become an editor
Wikipedia. Licensed under the GNU Free Documentation License.
Are you an expert in this subject? Join the discussion and share your knowledge at Wikipedia.org.
Internal laryngeal nerve
From Wikipedia, the free encyclopedia
| Nerve: Internal laryngeal nerve | ||
|---|---|---|
 |
||
| Course and distribution of the glossopharyngeal, vagus, and accessory nerves. (Interal branch of superior laryngeal labeled at center right.) | ||
| Latin | ramus internus nervi laryngei superioris | |
| Gray's | subject #205 912 | |
| From | superior laryngeal nerve | |
| Dorlands/Elsevier | r_02/12690381 | |
The internal laryngeal nerve is the internal branch (ramus internus) of the superior laryngeal nerve. It descends to the hyothyroid membrane, pierces it in company with the superior laryngeal artery, and is distributed to the mucous membrane of the larynx.
Of these (sensory) branches some are distributed to the epiglottis, the base of the tongue, and the epiglottic glands; others pass backward, in the aryepiglottic fold, to supply the mucous membrane surrounding the entrance of the larynx, and that lining the cavity of the larynx as low down as the vocal folds.
A filament descends beneath the mucous membrane on the inner surface of the thyroid cartilage and joins the recurrent nerve.
Above the vocal folds the sensory innervation of the larynx is via the internal laryngeal nerve. Below the vocal folds it is by way of branches of the recurrent laryngeal nerve.
Irritation of the internal laryngeal nerve results in uncontrolled coughing - usually as a result of food or water in the laryngopharynx.
 The ligaments of the larynx. Antero-lateral view. |
 |
This neuroscience article is a stub. You can help Wikipedia by expanding it. |