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Neurology > cranial nerves > Flashcards

cranial nerves Flashcards

1
Q

name cranial nerve I?

function?

A

Olfactory

Smell

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2
Q

name cranial nerve II?

function?
-3

A

Optic nerve

visual acuity
visual fields
accommodation
pupil size

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3
Q

name cranial nerve III?

function?

A

Oculomotor

Eye movements
raise eyelid
constrict pupillae

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4
Q

name cranial nerve IV?

eye muscle innervated?

function?

A

trochlear

superior oblique muscle

take eye down and in

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5
Q

name cranial nerve V?

functions?
-4

A

Trigeminal

sensation to face
sensation to ant 2/3 tongue
muscles of chewing
corneal reflex

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6
Q

name cranial nerve VI?

eye muscle innervated?

function?

A

abducens

lateral rectus muscle

move eye laterally

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7
Q

name cranial nerve VII?

functions?
-4

A

Facial nerve

move muscles of face
Ant 2/3 of tongue taste
make tears
salivation
stapedius muscle
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8
Q

name cranial nerve VIII?

function?

A

Vestibulocochlear

hearing

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9
Q

name cranial nerve IX?

functions?
-3

A

Glossopharyngeal

post. 1/3 of tongue taste
swallowing
salivation

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10
Q

name cranial nerve V?

functions?
-3

A

Vagus

swallowing
vocalisation
sensation to organs

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11
Q

name cranial nerve VI?

muscles innervated?

functions?

A

Accessory nerve

sternocleidomastoid muscle
trapezius

head rotation
shoulder elevation

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12
Q

name cranial nerve VII?

function?

A

Hypoglossal nerve

Move tongue

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13
Q

which cranial nerves allow salivation?

and through autonomic nervous system (ANS)?

A

Facial nerve
Glossopharyngeal

PNS

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14
Q

which cranial nerves allow tongue taste to posterior 1/3rds?

A

Glossopharyngeal

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15
Q

constriction of pupillae occurs through what autonomic nervous system?

A

PNS

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16
Q

tear production occurs through what autonomic nervous system?

A

PNS

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17
Q

which cranial nerve allows hearing?

A

Vestibulocochlear

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18
Q

which cranial nerves are entirely motor?

give roman numerals and
full names,

A

III, IV, VI, XI, and XII

Occulomotor 
Trochlear nerve
Abducens
Accessory nerve
Hypoglossal nerve
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19
Q

which cranial nerves are entirely sensory?

give roman numerals and
full names,

A

I, II, and VIII

Olfactory nerve
Optic nerve
Vestibulocochlear

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20
Q

which cranial nerves are sensory and motor?

A

V, VII, IX, X

Trigeminal nerve
Facial nerve
Glossopharyngeal
Vagus nerve

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21
Q

pneumonic to remember names and order of cranial nerves?

A

Ooh, Ooh, Ooh, to touch and feel very good velvet. Such heaven!

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22
Q

pneumonic to remember which cranial nerves and sensory/motor or both?

A

Some say marry money but my brother says big brains matter more

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23
Q

which cranial nerves pass through Jugular foramen?

A

9 10 11

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24
Q

which cranial nerves pass through hypoglossal canal?

- name and number

A

12

Hypoglossal nerve

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25
Q

which cranial nerves passes through the cribriform plate?

- name and number

A

1

Olfactory nerve

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26
Q

memory device to remember which cranial nerves pass through which area of the brain?

A

COSIJH 114231

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27
Q

CNII pass through what hole in the brain?

A

Optic canal

28
Q

which cranial nerves pass through the superior orbital fissure?
- name and number

A

3 4 5 6

Occulomotor nerve
Trochlear nerve
Trigeminal
Abducens

29
Q

CNVII and CNVIII pass through what hole in the brain?

name these nerves?

A

Intra acoustic foramen

Facial nerve
Vestibulocochlear

30
Q

Trigeminal is split into what 3 areas?

A

V1, V2, V3

31
Q

ptosis can be caused by damage to what cranial nerve?

A

3, occulomotor

32
Q

how do you test olfactory nerve?

A

ask about any changed in smell?

33
Q

what things are tested under optic nerve and how is each tested?
-6

A
  • Acuity
  • Visual fields
  • Pupillary Reflexes
  • Accommodation
  • Fundoscopy.
  • Blind spot
34
Q

how is acuity tested?

-2

A
  • Snellen chart

- Ishihara plates. Few secs per plate

35
Q

how are visual fields tested?

A
  • cover eye and move finger from outside to inside
36
Q

when doing fundoscopy which drug do you use to dilate pupil?

A

tropicamide

37
Q

how do you test eye movements?

A

H

38
Q

what is it called when eyes point in different directions?

what nerves could be effected to cause this?

A

Strabismus

III IV VI

39
Q

medical word for dancing eyes?

A

nystagmus

40
Q

involuntary rhythmic movement of the eye.

medical word for?

how do you test for this?

what nerves could be effected to cause this?

A

nystagmus

Stop in middle of H to detect nystagmus

III IV VI

41
Q

define Diplopia?

what nerves could be effected to cause this?

A

double vision

III IV VI

42
Q

how can you test motor functions of trigeminal nerve?

-3

A

Move jaw side to side
Tense temple + Jaw
Corneal reflex. Jaw jerk.

43
Q

Corneal reflex controlled by what nerve?

A

trigeminal nerve?

44
Q

how can you test sensory functions of trigeminal nerve?

A

Cotton wool and prick test on v1, v2, v3

45
Q

Hz for tuning fork test?

A

512Hz

46
Q

where do you put tuning fork in Weber’s?

A

middle of forehead

47
Q

where do you put tuning fork in Rinne’s?

A

mastoid bone

48
Q

normal result for Rinne’s test?

A

air>bone

49
Q

name of test to check semi-circular canals of fluid?

which nerve is being tested?

what function of this nerve is being testd?

A

Romberg’s test

Vestibulocochlear

balance

50
Q

fasciculation are caused by impairment to what cranial nerve?

name and number?

A

Hypoglossal

XII

51
Q

how do you test Facial nerve motor function?

-3

A

Raise eyebrows, puff cheeks, smile

52
Q

you’re testing facial nerve.

in normal function what will be accentuated on raising eyebrows which shows you CN7 is functioning normally?

A

forehead creases

53
Q

you’re testing facial nerve.

in normal function what will be accentuated on smiling which shows you CN7 is functioning normally?

A

Nasolabial folds

54
Q

there is a X lesion .

where does uvula deviate?

A

uvula does not deviate

55
Q

there is a IX lesion .

where does uvula deviate?

IX, is what cranial nerve?

A

uvula deviates away from affected side

Glossopharyngeal

56
Q

how to test Accessory nerve?

A

shrug shoulder

turn head

57
Q

how to test Hypoglossal nerve?

on doing above test what extra thing should you be looking for which if present shown nerve is abnormal?

A

stick tongue out
move togngue side to side
say la la la

Fasciculation

58
Q

pt has tongue fasciculations.

what nerve is effected?

A

Hypoglossal nerve

59
Q

Hypoglossal nerve has a lesion.

will it move towards or away from affected side?

A

deviates towards affected side

60
Q

Olfactory nerve impaired.

what symptom arises?

A

Anosmia

61
Q

trigeminal nerve impaired.

what symptoms + signs arise?
-3

A

Less facial sensation

Weakness on chewing

62
Q

how do you test CNVIII?

which nerve is this?

A

Whispering
Tuning fork tests
Romberg’s test

Vestibulocochlear

63
Q

oculomotor takes info tpo what muscles to pupils dilate or constrict?

A

ciliary muscles

64
Q

give pathway for how optic nerve takes info to brain?

A

ON –> Optic chiasma –> optic tract –> lateral geniculate nucleus in thalamus –> O radiation –> visual cortex

65
Q

what are the only two CN’s that do not come from the brainstem?

A

optic nerve

olfactory nerve

66
Q

which nerves comes from midbrain?

A

CN3 and CN4

Neurology (40 decks)

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