Brainscape's Knowledge GenomeTM

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


See full index

Neuro > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

CN1 does what?

A

Smell

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

How to test CN1?

A

Any change in sense of smell?

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

Where does CN1 exit?

A

Via cribiform plate

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

Function of CN II?

A

Vision

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

Where does CN II exit?

A

Optic canal

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

How to test CN II?

A 
Visual acuity
Pupillary reflexes
Ishihara
Visual fields
Fundoscopy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does CN III do?

A

Eye movements

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

What muscles does CN III innervate?

A 
Internal oblique
Medial rectus
Superior rectus 
Internal oblique
Constrictor pupillae
Levator palpebrae superioris
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where does CN III exit?

A

Superior orbital fissure

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

What Can a CN III palsy lead to?

A

Eye down and out
Dilated pupil
Ptosis

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

How to test CN III?

A

Eye movements

Cover test

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

Function of CN IV?

A

Moves eye down and out - superior oblique

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

Palsy of CN IV?

A

Upward facing eye

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

Where does CN IV exit?

A

Superior orbital fissure

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

How to test CN IV?

A

Eye movements

Cover test

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

Function of CN V?

A

Sensation to face - 1,2,3

Motor innervation to muscles of mastication a masseter, temporalis, medial and lateral pterygoid

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

Where does CN V1 exit?

A

Superior orbital fissure

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

Where does CN V2 exit?

A

foramen rotunda

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

Where does CN V3 exit?

A

Foramen ovale

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Palsy of CN V?

A

Loss of facial sensation

Unable to chew

21
Q

How to test CN V?

A 
Light touch / pin prick sensation 
Palpate masseter/ temporalis
Jaw jerk
Corneal reflex
Open jaw against resistance
22
Q

Function of CN VI?

A

Moves eye laterally - lateral rectus

23
Q

Where does CN VI exit?

A

Superior orbital fissure

24
Q

Palsy of CN VI?

A

Eye unable to be abducted past midline

25
Q

How to test CN VI?

A

Eye movements

Cover test

26
Q

Function of CN VII?

A 
Innervates muscles of facial expression 
Taste to anterior 2/3 of tongue 
Corneal efferent reflex 
Tears and salivary ducts 
Innervates strapedius muscle
27
Q

Where does CN VII exit?

A

Internal acoustic meatus

Stylomastoid foramen

28
Q

Pathology to CN VII?

A

Bell’s palsy

29
Q

How to test CN VII?

A

Facial movements - raise eyebrows, close eyes, blow out cheeks, smile, purse lips
Inspect EAM
Any hearing or taste changes?

30
Q

Function of CN VIII?

A

Balance and hearing

31
Q

Where does CN VIII exit?

A

External Acoustic meatus

32
Q

Damage to CN VIII?

A

Balance difficulties
Tinnitus
Nystagmus
Sensorineural deafness

33
Q

How to test CN VIII?

A

Whisper test
Rinnes
Webers

34
Q

Function of CN IX?

A

Taste to Posterior 1/3 of tongue
Sensation to pharynx
Innervates stylopharyngeus

35
Q

Where does CN IX exit?

A

Jugular foramen

36
Q

CN IX palsy ?

A

Decreased pharyngeal sensation
Affects taste
Deviated uvula away from infected side

37
Q

How to test CN IX?

A

Look at uvula, say ahh
Cough
Swallow
Gag reflex

38
Q

Function of CN X?

A

Parasympathetic innervation to all of viscera above splenic flexure.
Innervates laryngeal muscles and palatoglossus.
Controls gag reflex.

39
Q

Where does CN X exit?

A

Jugular foramen

40
Q

Palsy of CN X?

A

Bovine cough

Sympathetic overdrive

41
Q

How to test CNX?

A

Uvula and say ahh
Cough
Swallow
Gag reflex

42
Q

Function of CN XI?

A

Inner ages sternocleidomastoid and trapezius

43
Q

Where does CN XI exit?

A

Jugular foramen

44
Q

CN XI palsy?

A

can’t shrug shoulders or turn head powerfully

45
Q

How to test CN XI?

A

Shrug shoulders against resistance - trapezius

Turn head to one side against resistance - sternocleidomastoid

46
Q

Function of CN XII?

A

Inner aged all muscles that move tongue except palatoglossus

47
Q

Where does CN XII exit?

A

Hypoglossal canal

48
Q

Palsy of CN XII?

A

Deviation of tongue towards affected side ( tongues tell tales)

49
Q

How to test CN XII?

A

Stick tongue out

Stick tongue into cheek against resistance

Neuro (19 decks)

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