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anatomy 403 > 3.1 neuro - cranial nerves > Flashcards

3.1 neuro - cranial nerves Flashcards

1
Q

Name CN I

A

olfactory

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2
Q

Name CN II

A

optic

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3
Q

Name CN III

A

oculomotor

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4
Q

Name CN IV

A

trochlear

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5
Q

Name CN V

A

trigeminal

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6
Q

Name CN VI

A

abducens

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7
Q

Name CN VII

A

facial

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8
Q

Name CN VIII

A

vestibulocochlear

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9
Q

Name CN X

A

vagus

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10
Q

Name CN IX

A

glossopharyngeal

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11
Q

Name CN XI

A

accessory

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12
Q

Name CN XII

A

hypoglossal

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13
Q

What number cranial nerve is the olfactory

A

I

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14
Q

What number cranial nerve is the optic

A

II

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15
Q

What number cranial nerve is the oculomotor

A

III

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16
Q

What number cranial nerve is the trochlear

A

IV

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17
Q

What number cranial nerve is the trigeminal

A

V

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18
Q

What number cranial nerve is the abducens

A

VI

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19
Q

What number cranial nerve is the vestibulocochlear

A

VIII

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19
Q

What number cranial nerve is the facial

A

VII

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20
Q

What number cranial nerve is the vagus

A

X

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21
Q

What number cranial nerve is the glossopharyngeal

A

IX

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22
Q

What number cranial nerve is the accessory

A

XI

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23
Q

What number cranial nerve is the hypoglossal

A

XII

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24
Q

What is the modality (sensory/motor/mixed) of CN I olfactory

A

Somatic

25
Q

What is the modality (sensory/motor/mixed) of CN II optic

A

Somatic

26
Q

What is the modality (sensory/motor/mixed) of CN III oculomotor

A

Motor

27
Q

What is the modality (sensory/motor/mixed) of CN IV trochlear

A

Motor

28
Q

What is the modality (sensory/motor/mixed) of CN V trigeminal

A

Both

29
Q

What is the modality (sensory/motor/mixed) of CN VI abducens

A

Motor

30
Q

What is the modality (sensory/motor/mixed) of CN VII facial

A

Both

31
Q

What is the modality (sensory/motor/mixed) of CN VIII vestibulocochlear

A

Somatic

32
Q

What is the modality (sensory/motor/mixed) of CN IX glossopharyngeal

A

Both

33
Q

What is the modality (sensory/motor/mixed) of CN X vagus

A

Both

34
Q

What is the modality (sensory/motor/mixed) of CN XI accessory

A

Motor

35
Q

What is the modality (sensory/motor/mixed) of CN XII hypoglossal

A

Motor

36
Q

Name the targets and location of CN I olfactory

A

sense of smell
extends from olfactory mucosa of nasal cavity to olfactory bulb
neurons of the olfactory bulb project directly to the limbic cortex

37
Q

Name the targets of CN II optic

A

vision sense
carries signals from neural retina to thalamus
half the information crosses to the contralateral thalamus and cortex, half projects to the ipsilateral thalamus and cortex
optic nerve > optic chiasm (crossing occurs) > optic tract

38
Q

Name the targets of CN III oculomotor

A

somatic, 5 extrinsic eye muscles
- levator palpebrae superioris
- superior rectus
- inferior rectus
- medial rectus
- inferior oblique
parasympathetic (visceral motor), 2 intrinsic eye muscles
- ciliary muscle, allows for accomodation of near vision / changing shape of lense
- sphincter pupillae, constriction of pupil

39
Q

Name the targets of CN IV trochlear

A

somatic, 1 extrinsic eye muscle
superior oblique

40
Q

Name the targets of CN V trigeminal

A

motor: muscles of mastication
sensory: face and oral cavity (anterior 2/3 of tongue and teeth)
3 branches
- ophthalmic (sensory)
- maxillary (sensory)
- mandibular (sensory and motor)

41
Q

Name the targets of CN VI abducens

A

somatic, 1 extrinsic eye muscle
lateral rectus

42
Q

Name the targets of CN VII facial

A

parasympathetic (visceral motor): submandibular and sublingual glands, nasal and oral mucosa, lacrimal glands
somatic motor: muscles of facial expression
sensory: taste on anterior 2/3 of the tongue

43
Q

Name the targets of CN VIII vestibulocochlear

A

cochlear branch: carries auditory information from the cochlea
vestibular branch: carries information concerning balance from the vestibular apparatus and semicircular canals

44
Q

Name the targets of CN IX glossopharyngeal

A

parasympathetic (visceral motor): parotid gland
somatic motor: stylopharyngeus muscle, lifts throat during swallowing
sensory: general sensation and taste on the posterior 1/3 of the tongue
nerve to the carotid body and carotid sinus

45
Q

Name the targets of CN X vagus

A

parasympathetic (visceral motor): to thoracic and abdominal viscera, innervates gut to the splenic flexure
somatic motor: constriction of muscles in the pharynx, intrinsic muscles of the larynx
sensory: pharynx and larynx

46
Q

Name the targets of CN XI accessory

A

motor: somatic
spinal portion arises in the cervical spinal cord and innervated the sternocleidomastoid and trapezius muscles

47
Q

Name the targets of CN XII hypoglossal

A

motor: somatic
intrinsic and extrinsic muscles of the tongue

48
Q

Where does CN I olfactory connect to the brain stem

A

it does not

49
Q

Where does CN II optic connect to the brain stem

A

it does not

50
Q

Where does CN III oculomotor connect to the brain stem

A

midbrain

51
Q

Where does CN IV trochlear connect to the brain stem

A

midbrain

52
Q

Where does CN V trigeminal connect to the brain stem

A

pons

53
Q

Where does CN VI abducens connect to the brain stem

A

pons

54
Q

Where does CN VII facial connect to the brain stem

A

pons

55
Q

Where does CN VIII vistibulocochlear connect to the brain stem

A

medulla

56
Q

Where does CN IX glossopharyngeal connect to the brain stem

A

medulla

57
Q

Where does CN X vagus connect to the brain stem

A

medulla

58
Q

Where does CN XI accessory connect to the brain stem

A

spinal cord

59
Q

Where does CN XII hypoglossal connect to the brain stem

A

medulla

anatomy 403 (26 decks)

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