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Glossopharyngeal Nerve (IX): Schema<br />
NEUROANATOMY<br />
Efferent fibers<br />
Spinal tract and spinal nucleus of trigeminal nerve<br />
Afferent fibers<br />
Solitary tract nucleus<br />
Parasympathetic fibers Tympanic nerve (Jacobson)<br />
Nucleus ambiguus<br />
Tympanic cavity and plexus<br />
Inferior salivatory nucleus<br />
Stylomastoid foramen<br />
Geniculate ganglion<br />
of facial nerve<br />
Caroticotympanic nerve (from internal carotid plexus)<br />
Greater petrosal nerve<br />
Deep petrosal nerve<br />
Nerve (vidian) of pterygoid canal<br />
Lesser petrosal nerve<br />
Pterygopalatine ganglion<br />
Mandibular nerve (V 3 )<br />
Otic ganglion<br />
Auriculotemporal nerve<br />
Parotid gland<br />
Tubal branch of tympanic plexus<br />
Pharyngotympanic (auditory)<br />
tube and pharyngeal opening<br />
Stylopharyngeus muscle (and branch<br />
Glossopharyngeal<br />
from glossopharyngeal nerve)<br />
nerve (IX)<br />
Jugular foramen<br />
Communication to auricular<br />
branch of vagus nerve<br />
Superior and<br />
Inferior ganglia of<br />
Glossopharyngeal nerve<br />
Taste and<br />
somatic<br />
sensation:<br />
posterior<br />
1<br />
⁄3 of tongue<br />
Communication to facial nerve (VII)<br />
Vagus nerve (X)<br />
Superior cervical<br />
sympathetic ganglion<br />
Sympathetic trunk<br />
Carotid branch of<br />
glossopharyngeal nerve<br />
Pharyngeal plexus<br />
Pharyngeal, tonsillar and lingual<br />
branches of glossopharyngeal nerve<br />
Pharyngeal branch of vagus nerve<br />
Internal carotid artery<br />
Carotid sinus<br />
Carotid body<br />
Common carotid artery<br />
External carotid artery<br />
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