Pharyngeal plexus
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| Nerve: Pharyngeal plexus | |
|---|---|
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| Muscles of the pharynx, viewed from behind, together with the associated vessels and nerves. (Pharyngeal plexus visible but not labeled.) | |
| Latin | plexus pharyngeus |
| Gray's | subject #204 909 |
| Dorlands / Elsevier | p_24/12648279 |
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The pharyngeal plexus is a network of nerve fibers supplied by the pharyngeal branch of vagus nerve joining with branches from the pharyngeal branches of glossopharyngeal nerve, sympathetic fibers, and the external laryngeal nerve.
It is located on the surface of the middle pharyngeal constrictor muscle.[1]
Sensory innervation
The pharyngeal plexus provides sensory innervation of the oropharynx and laryngopharynx from CN IX and CN X. (The nasopharynx is innervated by CN V2)
Motor innervation
The pharyngeal plexus, with fibers from CN IX, CN X, and cranial part of CN XI, innervates all the muscles of the pharynx (except stylopharyngeus, which is innervated directly by a branch of CN IX).
This includes the muscles levator veli palatini, palatoglossus, and musculus uvulae, the pharyngeal constrictors, plus others.
See also
References
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
