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Nervous system > cranial nerves > Flashcards

cranial nerves Flashcards

1
Q

what is CNI

A

olfactory nerve

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2
Q

what is CNII

A

optic nerve

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3
Q

what is CNIII

A

oculomotor

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4
Q

what is CNIV

A

trochlear nerve

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5
Q

what is CNV

A

Trigeminal nerve

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6
Q

what is CNVI

A

Abducens

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7
Q

what is CNVII

A

facial nerve

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8
Q

what is CNVIII

A

vestibulocochlear nerve

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9
Q

what is CNIX

A

glossopharangeal nerve

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10
Q

what is CNX

A

vagus nerve

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11
Q

what is CNXI

A

accessory nerve

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12
Q

what is CNXII

A

hypoglossal nerve

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13
Q

What type of nerve is CNI

A

sensory

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14
Q

what is function of CNI

A

smell from nasal mucosa
sensory of nasal cavity

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15
Q

what are the symptoms of CNI damage (2)

A

anosmia
rhinorrohoea

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16
Q

what type of nerve is CNII

A

sensory

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17
Q

what is the function of CNII

A

vision from retina

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18
Q

what are symptoms of CNII damage (2)

A

visual field defect
loss of constriction

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19
Q

what type of nerve is CNIII

A

motor

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20
Q

what is the function of CNIII

A

accommodation
constriction
eye movement (adduction extortion, elevation and depression)

21
Q

what are the symptoms of CNIII damage (4)

A

dilated pupil
down and out eye
loss of reflex
double vision

22
Q

what is the function of CNIV

A

moves eye down and in

23
Q

what type of nerve is CNIV

A

motor

24
Q

what are the symptoms of CNIV damage (2)

A

convergent squint
vertical diplopia

25
Q

what type of nerve is CNV

A

motor and sensory

26
Q

what is the function of CNV

A

ophthalmic- sensory to forehead eyes and nasal cavity
maxillary - sensory top fcae eyes and upper lip
mandibular- motor function of tongue and chewing, also sensory to the tongue

27
Q

what are the 3 branches of the trigeminal nerve called

A

maxillary
ophthalmic
mandibular

28
Q

what are the symptoms of CNV damage (5)

A

loss of facial sensation
jaw deviation
tongue deviation
mastication muscles paralysis
trigeminal neuralgia

29
Q

what type of nerve is CNVI

A

Motor

30
Q

what is the function of CNVI

A

moves eye laterally

31
Q

what are the symptoms of CNVI damage (2)

A

lateral diplopia
convergent squint

32
Q

what type of nerve is CNVII

A

motor and sensory

33
Q

what si the function of CNVII

A

muscles of facial expression
sensory to era concha
head and neck glands

34
Q

what are the symptoms of CNVII damage (4)

A

facial nerve paralysis
loss of taste
loss of corneal reflex
hyperacusis

35
Q

what type of nerve is CNVIII

A

sensory

36
Q

what is the function of CNVIII

A

hearing (cochlear canal)
balance (semicircular canal)

37
Q

what are the symptoms of CNVIII damage (2)

A

hearing loss
vertigo

38
Q

what type of nerve is CNIX

A

motor and sensory

39
Q

what si the function of CNIX

A

taste on posterior 1/3 of tongue
sensory to inner ear
parotid glads control

40
Q

what are the symptoms of CNIX damage (3)

A

loss of gag reflex
hypersensitive carotid sinus reflex

41
Q

what type of nerve is CNX

A

motor and sensory

42
Q

what sis the function of CNX

A

sensory to external ears and auditory canal
sensory to larynx
senstory to root of tongue and taste
motor to pharynx
motor to heart, lung and GI tract

43
Q

what are the symptoms of CNX damage

A

uvula deviation
loss of gag reflex
soft palate sagging
hoarseness

44
Q

what type of nerve is CNXI

A

motor

45
Q

what is the function of CNXI

A

innervates trapezius and sternocleidomastoid

46
Q

what are the symptoms of CNXI damage (2)

A

shoulder droop
can’t turn head

47
Q

what type of nerve is CNXII

A

motor

48
Q

what is the function of CNXII

A

tongue movement, swallowing and speech

49
Q

what are the symptoms of CNXII damage (2)

A

dysarthria
tongue deviation to side of damage

Nervous system (13 decks)

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