[citation needed] The pharyngeal plexus occurs upon the outer surface of the pharynx - especially superficial to the middle pharyngeal constrictor muscle.

[2] En route to their target tissues, outgoing fibres from the pharyngeal plexus at first either ascend upon the superior pharyngeal constrictor muscle or descend upon the inferior pharyngeal constrictor muscle, then ramify within the pharyngeal muscular layer and mucous membrane.

[dubious – discuss][citation needed] This includes the following muscles: palatopharyngeus, palatoglossus, musculus uvulae, the pharyngeal constrictors, salpingopharyngeus plus others.

[citation needed] The pharyngeal plexus provides sensory innervation to most of the pharynx;[1] it provides sensory innervation to the oropharynx and laryngopharynx from CN IX and CN X.

(The nasopharynx above the pharyngotympanic tube and the torus tubarius is innervated by CN V2).