Pharyngeal plexus

Jump to: navigation, search
Nerve: Pharyngeal plexus
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
/ Elsevier

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Please Take Over This Page and Apply to be Editor-In-Chief for this topic: There can be one or more than one Editor-In-Chief. You may also apply to be an Associate Editor-In-Chief of one of the subtopics below. Please mail us [2] to indicate your interest in serving either as an Editor-In-Chief of the entire topic or as an Associate Editor-In-Chief for a subtopic. Please be sure to attach your CV and or biographical sketch.

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