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PNS > Exam 2: CN 10 > Flashcards

Exam 2: CN 10 Flashcards

1
Q

Vagus nerve carries these types of fibers

A

Motor
Para
Sensory (taste)

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2
Q

Vagus is the ____ cranial nerve and is the most important _____ nerve

A

Longest; para

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3
Q

Motor fibers in vagus have cell bodies in the

A

Nucleus ambiguus

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4
Q

The nucleus ambiguus receives info from

A

Both cerebral hemispheres

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5
Q

Pre para fibers arise from _____ nucleus of vagus

A

Posterior (dorsal)

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6
Q

The posterior nucleus of vagus receives info indirectly from

A

Hypothalamus and carotid sinus

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7
Q

Incoming somatic sensory info terminates in

A

Spinal nucleus of CN V

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8
Q

Taste and viscerosensory info terminates in

A

Nucleus of solitary tract

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9
Q

Two peripheral ganglia associated w/ vagus

A

Superior and inferior

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10
Q

Superior ganglion AKA

A

Jugular ganglion

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11
Q

Inferior ganglion AKA

A

Nodose ganglion

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12
Q

Somatosensory info carried in neurons w/ cell bodies in

A

Superior ganglion

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13
Q

Sensory distribution of vagus

A 
Dura
Auricle
External auditory canal
Lateral tympanic membrane
Oropharynx
Laryngopharynx
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14
Q

Sensory info is carried to _____

A

Spinal nucleus of trigeminal nerve

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15
Q

Taste from epiglottis is carried to _____ by neurons located in inferior ganglion

A

Superior part of nucleus of solitary tract

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16
Q

Visceral sensory info carried to _____ by neurons in inferior ganglion

A

Inferior part of nucleus for solitary tract

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17
Q

Vagus nerve carries visceral sensory info from

A 
Larynx
Laryngopharynx
Viscera in thoracic and abdominal cavities
Baroreceptors in aortic arch
Chemoreceptors in para-aortic body
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18
Q

Vagus nerve emerges from _____ as a series of ____

A

Lateral aspect of MO; rootlets

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19
Q

Vagus exits skull through

A

Jugular foramen

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20
Q

Branch given off before exiting skull

A

Meningeal branch

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21
Q

Meningeal branch supplies

A

Dura of posterior cranial fossa

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22
Q

Jugular foramen compartmentalized by a

A

Fibrous septum

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23
Q

What nerves travel anterior to the septum

A

Vagus and accessory

24
Q

What nerves travel posterior to septum

A

Glossopharyngeal N

25
Q

Superior ganglion is located in the ____ while the inferior ganglion is located ____

A

Jugular foramen; just inferior to jugular foramen

26
Q

Auricular branch given off at the

A

Superior ganglion

27
Q

Auricular branch courses through _____ and ____ to reach EAM

A

Mastoid canaliculus; tympanomastoid fissure

28
Q

auricular branch carries sensory info from

A

Meatus and small portion of auricle

29
Q

After jugular foramen, vagus nerve travels inferiorly w/in

A

Carotid sheath

30
Q

In carotid sheath vagus travels between

A

Internal carotid artery and internal jugular vein (above bifurcation)

Common carotid (below bifurcation)

31
Q

Pharyngeal branch leaves at

A

Inferior ganglion

32
Q

Pharyngeal branch combines w/ fibers from _____ to form _____

A

Glossopharyngeal N and post sympathetic trunk; pharyngeal plexus

33
Q

Vagal fibers provide motor supply to

A

Pharyngeal constrictor muscles

Levator veli palatine

34
Q

Uvula deviates to which side if L vagus is affected

A

Right (deviates to normal side)

35
Q

Branches to carotid artery are given off of the

A

Inferior ganglion

36
Q

Chemoreceptors in carotid body carry info to

A

Inferior part of nucleus for solitary tract

37
Q

Superior laryngeal nerve divides into

A

Internal and external laryngeal nerves

38
Q

External laryngeal N motor supply to

A

Cricothyroid muscle

39
Q

Internal laryngeal N sensory from

A

Laryngeal mucosa down to vocal folds

40
Q

Recurrent laryngeal N motor supply to

A

All muscles of larynx EXCEPT cricothyroid

41
Q

Recurrent laryngeal N carries sensory info from

A

Larynx inferior to vocal folds

42
Q

L side recurrent laryngeal passes under the ____ and becomes

A

Aortic arch; inferior laryngeal N

43
Q

Inferior laryngeal N supplies

A

Laryngeal musculature

44
Q

R side recurrent laryngeal N passes posterior to ____

A

Subclavian artery

45
Q

Superior and inferior cardiac branches carry ____ info to cardiac plexus

A

Parasympathetic

46
Q

Superior cardiac branches leave vagus and travel w/

A

Great vessels to cardiac plexus

47
Q

Inferior cardiac branches are given off by the

A

Recurrent laryngeal N

48
Q

Anterior or posterior pulmonary plexus is larger

A

Posterior

49
Q

The R vagus passes ____ and the L vagus passes ____ over the esophagus contributing to esophageal plexus

A

Posteriorly; anteriorly

50
Q

The R vagus nerve enters the abdominal cavity thru the ___ and becomes ___

A

Esophageal opening; posterior vagal trunk

51
Q

Posterior vagal trunk plexuses

A

Celiac
Superior mesenteric
Renal

52
Q

Posterior vagal trunk supplies

A 
Posterior stomach
Duodenum
Liver
Kidneys
SI
Prox 2/3 LI
53
Q

L vagus becomes the

A

Anterior vagal trunk

54
Q

Anterior vagal trunk sends branches to

A

Stomach
Liver
Pancreas
Superior duodenum

55
Q

Bilateral transection of vagus

A

Die

56
Q

Lesions w/in vault or close to skull

A

Probs w/ palata, pharynx and larynx

57
Q

Damage to recurrent laryngeal N

A

Hoarseness or dec volume of speech

PNS (24 decks)

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