Brainscape's Knowledge GenomeTM

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


See full index

Neuro 2 > Cranial Nerves CN VII, IX, X, XI, XII > Flashcards

Cranial Nerves CN VII, IX, X, XI, XII Flashcards

1
Q

CN X exits at?

A

Post olivary sulcus

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

Name nuclei of CN X vagus?

A

Dorsal motor nucelus
Nucleus ambiguus
Nucleus of solitary tract
Nucleus of spinal tract of trigeminal

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

Where do nuclei of CN X reside?

A

Medulla

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

Function of CN X?

A

Parasympathetic to thorax and abdomen.
Motor to pharyngeal constrictors, intrinsic laryngeal muscles, palatine muscles, and upper esophagus for phonation and swallowing.
Taste from larynx and epiglottis.
Sensory to pharynx, larynx, concha of external ear, and meninges of posterior fossa

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

Lesion to CN X?

A

Hoarseness, dysphagia, loss of gag reflex, and uvular deviation to strong side.

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

What is motor nucleus of CN X?

A

Nucelus ambiggus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are parasympathetic nuclei of CN X?

A

Nucelus of solitary tract and dorsal motor nucelus.

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

What is sensory nucelus of CN X?

A

Nucelus of spinal tract of trigeminal

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

What is taste nuclei of CN X?

A

Nucelus of solitary tract

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

Origin of CN XI?

A

Nucelus ambiguus and disperse cell bodies/medulla and cervical segments

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

Where does CN XI exit?

A

Post olivary sulcus

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

Cranial accessory function of CN XI?

A

Joins vagus nerve to supply muscles of pharynx, larynx, and soft palate

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

Spinal accessory function of CN XI?

A

Motor to SCM and traps.

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

Lesion to CN XI?

A

Inability to rotate head and shrug shoulders.

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

What CNs exit skull at jugular foramen?

A

IX, X, and XI

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

Origin of CN XII?

A

Hypoglossal nucelus at level of medulla

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

Where does CN XII exit at?

A

Pre-olivary sulcus and then hypoglossal canal

18
Q

Function of CN XII?

A

Motor to all of tongue muscles except palatoglossus

19
Q

Lesion to CN XII?

A

Ipsilateral tongue paralysis and atrophy

20
Q

Origin of CN IX?

A

Nucelus of solitary tract in medulla.
Nucelus ambiguus in medulla.
Inferior salivatory nucelus in pons.
Nucelus of spinal tract of trigeminal.

21
Q

What is the taste and autonomic nucelus of CN IX?

A

Nucelus of solitary tract in medulla

22
Q

What is motor nucelus of CN IX?

A

Nucelus ambiguus

23
Q

What is parasympathetic necleus of CN IX?

A

Inferior salivatory nucelus in pons

24
Q

Where does CN IX exit?

A

Post olivary sulcus and medulla

25
Q

Function of CN IX?

A

Motor to stylopharyngeus muscle, taste to posterior 1/3 of tongue, sensory to middle ear, tympanic cavity, Eustachian tubes, tonsils, naso-Oro-pharynx, uvula, soft palate, and posterior 1/3 tongue. Parasympathetic to parotid gland

26
Q

Via what is CN IX parasympathetic to parotid gland?

A

Otic ganglion

27
Q

What sends afferent fibers from carotid sinus/body?

A

CN IX

28
Q

Describe pathway of preganglionic parasympathetic fibers from CN IX to form tympanic nerve?

A

Nerve enters plexus and is joined by sympathetic fibers from carotid plexus (superior cervical ganglion) to then form lesser petrosal nerve which synapses in otic ganglion.

29
Q

Describe path of postganglionic fibers from otic ganglion from CN IX?

A

Enter auriculotemporal nerve (V3) to supply parotid salivary gland

30
Q

Name nuclei of CN VII?

A

Facial nucelus in lower pons at level of facial collliculus.
Nucelus of solitary tract.
Superior salivatory nucelus.

31
Q

What nucelus is responsible for taste and parasympathetics?

A

Nucelus of solitary tract

32
Q

What is solely a parasympathetic nucelus for CN VII?

A

Superior salivatory nucelus.

33
Q

What is the motor nucelus of CN VII?

A

Facial nucelus

34
Q

Function of CN VII motor nucelus?

A

Motor to muscles of facial expression, auricular muscles, stapedius, posterior belly of diagastric and stylohyoid muscles.

35
Q

What is the function of nucelus of solitary tract CN VII?

A

Taste from anterior 2/3 of tongue via chorda tympani

36
Q

What is function of superior salivatory nucleus CN VII?

A

Parasympathetics to lacrimal and serous and mucous glands of nasopharynx, and submandibular and sublingual salivary glands.

37
Q

What are the peripheral branches of CN VII?

A

Temporal, zygomatic, buccal, marginal mandibular, cervical

38
Q

Where does CN VII exit at?

A

Cerebellopontine angle and exits via stylomastoid foramen

39
Q

How to examine CN VII?

A

Facial expression, movements, and taste

40
Q

What happens if CN VII is lesioned?

A

Bell’s palsy LMN type facial paralysis (unilateral facial paralysis with inability to wrinkle forehead, raise eyebrow, shut eye, smile, tears over sagging lower eyelid and loss of taste anterior 2/3 tongue.

Neuro 2 (13 decks)

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