Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PNS exam 2 > unit 4: CN X, vagus > Flashcards

unit 4: CN X, vagus Flashcards

1
Q

as a mixed cranial nerve, the vagus carries ___, ___, & ___ info as well as some ____ info from the epiglottal region

A

motor
parasympathetic
sensory
taste

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

the vagus is the most important ____ nerve

A

parasympathetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

MOTOR nucleus of origin of the vagus

-is somatotopically organized, w/ info from both hemispheres

A

nucleus ambiguus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

preganglionic parasympathetic nucleus of origin, which receives info indirectly from the hypothalamus & carotid sinus

A

posterior (dorsal) nucleus of vagus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

there are two nuclei of termination for the vagus:

  • somatic sensory info terminates in the ______
  • taste & viscerosensory info terminate in the ____
A
  • spinal nucleus of CN V

- solitary nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

two peripheral ganglion that are associated with the vagus nerve
-not to be confused with those of the same name of the glossopharyngeal nerve

A 
superior ganglion (*of the vagus*)
inferior ganglion (*of the vagus*)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

somatic sensory info is carried in neurons whose cell bodies are located in the

A

superior ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

somatic sensory info is carried to from the

  • dura
  • auricle
  • external auditory canal
  • lateral tympanic membrane
  • oropharynx & laryngopharynx mucusa
  • -to terminate in this nucleus:
A

spinal nucleus of the trigeminal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

taste from the epiglottis terminates in the SUPerior part of the ____ ____, by neurons with CB in the _____ ____

A

solitary nucleus

inferior ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

visceral sensory info terminates in the INFerior part of the ____ ____, by neurons w CB in the ___ ___

A

solitary nucleus

inferior ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

the vagus carries ___ ___ info from the larynx, laryngopharynx, viscera in the thoracic & abdominal cavities, ___ receptors in the aortic arch, & ____receptors in the para-aortic body

A

visceral sensory
pressure
chemo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

the apparent origin of the vagus nerve, where it emerges as a series of rootlets

A

lateral aspect of medulla oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

the vagus trunk exits the skull through the __ __, which is compartmentalized by a fibrous septum

A

jugular foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

a meningeal branch is given off before the vagus exits the jugular foramen and it supplies the:

A

infratentorial dura of the posterior cranial fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

the vagus & accessory nerves travel ___ to the fibrous septum of the jugular foramen, while the glossopharyngeal travels ____
-the vagus and accessory also share a meningeal sheath

A

anterior

posterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

the ____ ganglion is located IN the jugular foramen, while the larger ___ ganglion is located INFERIOR to the jugular foramen

A

superior

inferior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

the auricular branch is given off the vagus at the superior ganglion, and travels through the ____ ____ & ___ ____ to reach the external auditory meatus

A

mastoid canaliculus

tympanomastoid fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

the auricular branch carries sensory info from these two places

A

meatus

small portion of the auricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

after exiting the jugular foramen, the vagus travels inferiorly w/i the carotid sheath bt the __ __ artery & ___ ____ vein

A

internal carotid

internal jugular

20
Q

inferior to the carotid bifurcation, the vagus will travel between the __ __ vein and ___ __ artery

A

internal jugular

common carotid

21
Q

branches of the vagus that are given off in the neck (5)

A 
pharyngeal
branches to carotid
superior laryngeal
recurrent laryngeal
superior & inferior cervical cardiac branch
22
Q

the ___ branch of the vagus comes of at the inferior ganglion and combines w glossopharyngeal fibers and sympathetic fibers from the sympathetic trunk to form the ___ plexus

A

pharyngeal

pharyngeal

23
Q

pharyngeal (vagal) motor fibers will supply the (2):

A

pharyngeal constrictor muscles

levator veli palatine muscle (of soft palate)

24
Q

vagal branches that relay viscerosensory info from chemoreceptors in the carotid body TO the inferior part of the solitary nucleus
-given off in inferior ganglion

A

branches to carotid artery

25
Q

vagal nerve that is given off inferior to inferior ganglion and splits into an internal and external branch

A

superior laryngeal nerve

26
Q

the EXTERNAL laryngeal nerve provides MOTOR supply to the

A

cricothyroid muscle

-tighten/elongates vocal folds

27
Q

the INTERNAL laryngeal nerve carries SENSORY info from

A

laryngeal mucosa (up to the vocal folds)

28
Q

the recurrent laryngeal nerve supplies MOTOR fibers to

A

all muscles of larynx EXCEPT cricothyroid

  • thyroarytenoid
  • posterior cricoarytenoid
  • lateral cricoarytenoid
  • arytenid muscles
29
Q

the recurrent laryngeal carries SENSORY info from the

A

larynx, inferior to vocal folds

30
Q

-on the LEFT side:
the recurrent laryngeal comes off after the vagus passes _____ the aortic arch, it then passes ____ the aortic arch and ascends to become the ___ ____ nerve

A

in front of
under
inferior laryngeal

31
Q

the inferior laryngeal nerve supplies

A

laryngeal musculature

32
Q

-on the RIGHT side:

the recurrent laryngeal nerve passes _____ under the _____ artery before ascending similarly to the left

A

posteriorly

subclavian

33
Q

the superior & inferior cervical cardiac branches carry PARA info to the ___ ___

A

cardiac plexus

34
Q

the ____ cardiac branches leave the vagus and travel with the great vessels (IVC, aorta) to the cardiac plexus

A

superior

35
Q

the ___ cardiac branches are given off by the recurrent laryngeal and travel to cardiac plexus

A

inferior

36
Q

one cervical cardiac branch will carry viscerosensory info of pressure on the wall of the aorta, and will be stimulated when ___ ___ becomes to high

A

aortic pressure

37
Q

after the vagus nerves enter the thorax, they pass posterior to the root of the ipsilateral lung and contrib to the ____ plexus

A

pulmonary

38
Q

at the pulmonary plexus, the RIGHT vagus passes ____ and the LEFT vagus passes ____ over the esophagus, to contrib to the esophageal plexus

A

posteriorly

anteriorly

39
Q

the ANTERIOR pulmonary plexus receives fibers from:

A

CERVICAL sympathetic ganglia

40
Q

the POSTERIOR pulmonary plexus receives fibers from

A

THORACIC ganglia

41
Q

the RIGHT vagus enters the abdom cavity thru the esophageal opening and becomes the ____ vagal trunk, which sends branches to the posterior stomach

A

posterior

42
Q

the POSTERIOR vagal trunk terminates in a celiac branch that sends branches to the (5):

A 
duodenum
liver
kidneys
SI
proximal 2/3 of LI
43
Q

the posterior vagal trunk reaches its organs via these three plexuses, which carry preganglionic PARA & sensory info

A

celiac
superior mesenteric
renal

44
Q

the LEFT vagus becomes the ___ vagal trunk after endering the abdom cavity thru the esophageal opening

A

anterior

45
Q

the ANTERIOR vagal trunk sends branches to the (5):

A 
stomach
liver
pancreas
superior duodenum
spleen

PNS exam 2 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions