cranial nerves Flashcards

1
Q

CN I

A

olfactory

sensory

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2
Q

CN II

A

optic

sensory

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3
Q

CN III

A

oculomotor

motor

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4
Q

CN IV

A

trochlear

motor

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5
Q

CN V

A

trigeminal

both

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6
Q

CN VI

A

abducens

motor

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7
Q

CN VII

A

facial

both

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8
Q

CN VIII

A

vestibulochoclear

sensory

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9
Q

CN IX

A

glossopharyngeal

both

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10
Q

CN X

A

vagus

both

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11
Q

CN XI

A

spinal accessory

motor

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12
Q

CN XII

A

hypoglossal

motor

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13
Q

CN I tests

A

smell

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14
Q

anosmia

parasmia

A

no smell

distorted smell

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15
Q

CN II/III test together

A

vision/accomodation

indirect and direct light reflexes

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16
Q

strabismus

ptosis

A

deviation of both eyes
weak/paralyzed levator palpebrae
-CN III

17
Q

CN IV muscle

A

superior oblique

18
Q

sensory for CN V

A

face, corneal, jaw jerk, oculocardiac reflex

anterior 2/3 tongue sensation

19
Q

motor for CN V

A

muscles of mastication

20
Q

tic douloreaux/trigeminal neuralgia

A

shock like, lightening pain from a few sec - 2 minutes
repetitive
one sideded
CN V/trigeminal

21
Q

CN VI muscle

A

lateral rectus

22
Q

sensory for CN VII

A

NOT PERFORMED
taste: anterior 2/3 tongue
sweet/sour/salty

23
Q

motor for CN VII

A

facial expression

24
Q

bell’s palsy

A
  • unilateral facial paralysis due to trauma, virus, autoimmune, is temporary
  • LMN
  • ipsilateral motor loss
  • no forehead wrinkle
  • CN VII
25
Q

stroke

A
  • UMN
  • contralat motor loss
  • forehead wrinkle
26
Q

vestib
cochlear
for CN VIII

A

vestib: balance (mittlemeyer, barany, romberg)
cochlear: hearing - webber/rinne/whisper

27
Q

meniere’s/endolymph hydrops

A

unknown but prob fluid abnormality causing episodic vertigo, hearing loss, tinnitus

28
Q

reflexes for IX (afferent) and X (efferent)

A

NOT PERFORMED
gag
uvula (deviates OPP lesion with ahhh)
carotid

29
Q

sensory for CN IX

A

NOT PERFORMED

taste post 1/3 tongue

30
Q

CN IX motor

A

stylopharyngeus: elevates pharynx/larynx, dilates pharynx

NOT PERFORMED

31
Q

CN X motor

A

epiglottis/laryngeal muscles (swallowing)

NOT PERFORMED

32
Q

CN XI action

A

traps/SCM: shrug/head rotation with resistance

33
Q

torticollis

A

spasm of scm
CN XI
boards purposes: do NOT adjust, but spray/stretch, corss frx massage

34
Q

CN XII action

A

tongue muscles
deviates TO SIDE OF lesion
look for atrophy, fasciculation

35
Q

graphesthesia

A

pt closes eyes, draw letter on their hand, test each side

-cant do it: cortical/posterior column lesion

36
Q

sterognosis

A

pt closes eyes, put familiar object in hand, test bilat

-posterior column/cortical lesion

37
Q

diadochokinesia

A

hand flips over on lap

-cant do, cerebellar lesion