unit 4: CN IX, glossopharyngeal Flashcards

1
Q

the glossopharyngeal n. carries motor, ___ & ____ fibers, therefore it is a mixed nerve

A

sensory

autonomic

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2
Q

glossopharyngeal carries motor (LMN) to the _____, sensory from the ____ (with taste from posterior tongue), and PARA info leading ultimately to the __ __

A

stylopharyngeus
pharynx
parotid gland

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3
Q

nucleus of origin for glossopharyngeal motor fibers

A

superior part of nucleus ambiguus

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4
Q

nucleus of origin for preganglionic parasympathetic fibers

A

inferior salivatory nucleus

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5
Q

two sensory nuclei of termination

A

solitary nucleus

spinal trigeminal nucleus

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6
Q

two peripheral ganglia with the glossopharyng: the smaller ____ ganglion and the _____ ganglion

A

superior

inferior

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7
Q

general sensory info is carried in glossopharyngeal branches from (5)

A
nasopharynx
oropharynx
tongue posterior to sulcus terminalis
uvula
palatine tonsils
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8
Q

taste info from tongue post to sulcus terminalis is carried from the ____ ganglion to the _________________

A

inferior

superior part of solitary nucleus

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9
Q

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)

A

solitary nucleus
carotid sinus
carotid body

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10
Q

three cranial nerves that receive LMN from the nucleus ambiguous

A

IX
X
XI

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11
Q

preganglionic PARA fibers from the inferior salivatory nucleus will synapse in the __ __

A

otic ganglion

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12
Q

three glands that receive postganglionic PARA supply

A

parotid
buccal
inferior labial

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13
Q

apparent origin of glossopharyngeal

-emerges as a series of rootlets

A

lateral aspect of superior medulla oblongata

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14
Q

glossopharyngeal exits skull via the

A

jugular foramen

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15
Q

the SUPERIOR ganglion is located _____ the cranium & the INFERIOR ganglion is located beyond the jugular foramen, ___ the cranium

A

inside

outside

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16
Q

nerve that arises from inferior ganglion and carries both preganglionic para and sensory fibers

A

tympanic nerve

17
Q

tympanic nerve fibers are carried through the ____ ____ into the tympanic cavity, where it receives post ganglionic SYMPATHETIC fibers from the ____ ___ ganglion to form the ____ ____

A

tympanic canaliculus
superior cervical
tympanic plexus

18
Q

the tympanic plexus carries somatosensory info from the (3):

A

tympanic cavity
pharyngotympanic tube
mastoid air cells

19
Q

the preganglionic PARA fibers pass thru the tympanic plexus and reform as the ___ ___ n., which travels to the lesser petrosal canal to the __ ganglion

A

lesser petrosal

otic

20
Q

postganglionic PARA fibers from the otic ganglion are carried in branches from CN ___ to the parotid, buccal, inferior labial glands

A

V3 (trigeminal, mandibular)

21
Q

pharyngeal branches convey sensory info from the

A

mucosa of pharynx

22
Q

the pharyngeal branches combine with some ___ branches to form the ____ ___, near the middle pharyngeal plexus

A

vagus

pharyngeal plexus

23
Q

the stylopharyngeus, the one muscle supplied by glossopharyngeal n, serves to ELEVATE the ___ & ___ as well as DILATE the ____

A

larynx
pharynx
pharynx

24
Q

TONSILLAR branches of glossopharyngeal convey sensory info from the

A

palatine tonsils

oral mucosa

25
Q

LINGUAL branches of glossopharyngeal carry this type of information from the posterior tongue

A

general sensory

taste