Pharyngeal plexus of vagus nerve
The pharyngeal plexus is a network of nerve fibers innervating most of the palate and pharynx.
It is located on the surface of the middle pharyngeal constrictor muscle.Innervation
Sensory
The pharyngeal plexus provides sensory innervation of the oropharynx and laryngopharynx from CN IX and CN X..Motor
The pharyngeal plexus, with fibers from CN IX, CN X, and cranial part of CN XI, innervates all the muscles of the pharynx.
This includes the following muscles: palatopharyngeus, palatoglossus, musculus uvulae, the pharyngeal constrictors, salpingopharyngeus plus others.
Note that the intrinsic muscles of the larynx are innervated by the vagus nerve but not by the pharyngeal plexus. Instead, they are innervated by the recurrent laryngeal nerve and the external branch of the superior laryngeal nerve, branches of the vagus.Additional images
