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PNS > Glossopharyngeal nerve > Flashcards

Glossopharyngeal nerve Flashcards

0
Q

Motor cell bodies for the glossopharyngeal nerve are located where?

A

superior part of the nucleus ambiguus

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1
Q

what type of information is carried by the glossopharyngeal nerve?

A

motor, sensory, autonomic (parasymthetic preganglionic) fibers

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2
Q

where do preganglionic parasympathetic fiber arise from?

A

inferior salivatory nucleus

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3
Q

Afferent sensory fibers terminate where?

A

the solitary nucleus and spinal nucleus of trigeminal

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4
Q

the glossopharyngeal nerve has two peripheral ganglia what are they?

A

superior (smaller) and inferior (petrosal) ganglion

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5
Q

where does general sensory information of the glossopharyngeal nerve come from?

A

from the nasopharynx, oropharnyx, and portion of the tongue posterior to the sulcus terminalis, uvula, and palatine tonsils

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6
Q

The glossopharyngeal nerve also carries general sensation from where?

A

the tympanic cavity

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7
Q

the cell bodies for the glossopharyngeal nerve are located where?

A

inferior ganglion

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8
Q

general sensation information carried by the glossopharyngeal nerve synapse where?

A

spinal nucleus of the trigeminal nerve

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9
Q

taste information from the posterior 1/3 of the tongue are carried by neuron from where?

A

inferior ganglion

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10
Q

taste axons terminate where

A

superior part of the solitary nucleus

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11
Q

some incoming fibers from the inferior ganglion synapse where?

A

the lower part of the solitary nucleus

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12
Q

what type of information is carried from the carotid sinus and carotid body?

A

visceral afferent information

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13
Q

the nucleus ambiguus contributes lower neurons to where?

A

three cranial nerves (IX, X, XI)

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14
Q

lower motor neuron of the glossopharyngeal nerve will innervate what?

A

stylopharyngeus muscle

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15
Q

what information does the inferior salivatory nucleus carry?

A

preganglionic parasympathetic

16
Q

where will fibers from the inferior salivatory nucleus synapse?

A

otic ganglion

17
Q

Postganglionic fibers from the otic ganglion supply what glands?

A

parotid galnd, buccal gland, and inferior labial gland

18
Q

the apparent origin of the glossopharyngeal nerve is?

A

superior lateral aspect of the medulla oblongata

19
Q

where does the glossopharyngeal nerve exist the skull?

A

posterior to the septum in the jugular foramen

20
Q

what ganglion is located inside the cranium and which is outside?

A

superior ganglion is inside

inferior ganglion is outside

21
Q

where does the tympanic nerve come from and what does it carry?

A

the inferior ganglion and carries preganglionic parasympathetic fibers and sensory fibers

22
Q

describe the path the tympanic to tympanic plexus

A

inferior ganglion, through the tympanic canaliculus, tympanic cavity, to the superior cervical ganglion, to tympanic plexus

23
Q

what type of information does the tympanic plexus and where does

A

somatosensory information from tympanic cavity, pharyngotympanic tube, and mastoid air cells

24
Q

preganglionic parasympathetic travel from the tympanic plexus to from what?

A

lesser petrosal nerve

25
Q

the lesser petrosal nerve goes where?

A

the otic ganglion via the lesser petrosal canal

26
Q

postganglionic parasympathetic fibers from the otic ganglion are carried by what?

A

C.N. V (mandibular division) to the parotid, buccal, and inferior labial glands

27
Q

the carotid branch carries what type of information to the inferior ganglion

A

afferent information from the chemoreceptor from the carotid body and baroreceptors from the carotid sinus

28
Q

what other nerve carries information similar to the carotid branch

A

vagus nerve

29
Q

the pharyngeal branches carry what type of information

A

sensory information from the mucosa of the pharynx

30
Q

what branches make up the pharyngeal plexus

A

pharyngeal branches and the vagal branches

31
Q

what does the muscular branch supply

A

the stylopharyngeus

32
Q

actions of the stylopharyngeus

A

elevates the larynx, elevates pharynx, dilates the pharynx

33
Q

what information is carried by the tonsillar branch

A

sensory information from the palatine tonsils and oral mucosa

34
Q

the lingual branch is carries what type of information

A

general sensory and taste information (bitter and sour) from the togue, posterior to the sulcus terminalis

PNS (6 decks)

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