pharyngeal branches of glossopharyngeal nerve pharyngeal branches of glossopharyngeal nerve the pharyngeal branches of the glossopharyngeal nerve are three or four filaments which unite, opposite the constrictor pharyngis medius, with the pharyngeal branches of the vagus and sympathetic, to form the pharyngeal plexus. pharyngeal branches of glossopharyngeal nervedetailsfromglossopharyngeal nervetopharyngeal plexusidentifierslatinrami pharyngei nervi glossopharyngeita98a14.2.01.144 a14.2.01.169ta26329fma53486anatomical terms of neuroanatomy branches from this plexus perforate the muscular coat of the pharynx and supply its muscles and mucous membrane.