unit 4: CN IX, glossopharyngeal Flashcards
the glossopharyngeal n. carries motor, ___ & ____ fibers, therefore it is a mixed nerve
sensory
autonomic
glossopharyngeal carries motor (LMN) to the _____, sensory from the ____ (with taste from posterior tongue), and PARA info leading ultimately to the __ __
stylopharyngeus
pharynx
parotid gland
nucleus of origin for glossopharyngeal motor fibers
superior part of nucleus ambiguus
nucleus of origin for preganglionic parasympathetic fibers
inferior salivatory nucleus
two sensory nuclei of termination
solitary nucleus
spinal trigeminal nucleus
two peripheral ganglia with the glossopharyng: the smaller ____ ganglion and the _____ ganglion
superior
inferior
general sensory info is carried in glossopharyngeal branches from (5)
nasopharynx oropharynx tongue posterior to sulcus terminalis uvula palatine tonsils
taste info from tongue post to sulcus terminalis is carried from the ____ ganglion to the _________________
inferior
superior part of solitary nucleus
incoming fibers from the INFERIOR ganglion synapse in the lower part of the ___ ___ with visceral afferent info from the baroreceptors in the ___ ___ and chemoreceptors __ __ (carotid branch)
solitary nucleus
carotid sinus
carotid body
three cranial nerves that receive LMN from the nucleus ambiguous
IX
X
XI
preganglionic PARA fibers from the inferior salivatory nucleus will synapse in the __ __
otic ganglion
three glands that receive postganglionic PARA supply
parotid
buccal
inferior labial
apparent origin of glossopharyngeal
-emerges as a series of rootlets
lateral aspect of superior medulla oblongata
glossopharyngeal exits skull via the
jugular foramen
the SUPERIOR ganglion is located _____ the cranium & the INFERIOR ganglion is located beyond the jugular foramen, ___ the cranium
inside
outside