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Anatomy > Cranial Nerves Exam 3 > Flashcards

Cranial Nerves Exam 3 Flashcards

1
Q

The cranial nerves are part of the (what system)

A

PNS

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2
Q

How many pairs of cranial nerves

A

12

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3
Q

Some cranial nerves have what kind of function…

A

Sensory, motor, or both

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4
Q

Most cranial nerves originate from the

A

Brain stem

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5
Q

The first two pairs of cranial nerves originate from

A

The prosencephalon

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6
Q

Cranial nerves are designated by

A

Name and Roman numeral

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7
Q

CN 1, II, and III

A

Olfactory, optic, oculomotor

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8
Q

CN IV, CN V, CN VI

A

Trochlear, trigeminal, abducens

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9
Q

CN VII

A

Facial

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10
Q

CN VIII

A

Vestibulocochlear

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11
Q

CN IX

A

Glossopharyngeal

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12
Q

CN X

A

Vagus

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13
Q

CN XI

A

Accessory Nerve

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14
Q

Last nerve, CN XII

A

Hypoglossal nerve

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15
Q

What nerves have only sensory functions

A

Olfactory, optic, and vestibulocochlear

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16
Q

What cranial nerves have only motor functions

A

Oculomotor, trochlear, abducens, accessory, hypoglossal

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17
Q

What cranial nerves have both sensory and motor functions

A

Trigeminal, facial, glossopharyngeal, and vagus

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18
Q

Openings for CN I

A

Olfactory foramina

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19
Q

Opening of CN II

A

Optic canal

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20
Q

Opening for CN III and CN IV

A

Superior orbital fissure

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21
Q

What nerve has three openings

A

Trigeminal nerve

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22
Q

Three openings of trigeminal nerve

A

Superior orbital fissure, foremen rotundum, and foremen ovale

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23
Q

Opening of nerve VII and VIII

A

Internal auditory meatus

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24
Q

Opening for cranial nerve IX, X, and XI

A

Jugular foremen

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25
Q

Opening for CN XII

A

Hypoglossal foremen

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26
Q

Function of olfactory nerve and pathway

A

Smell

Cribriform plate of ethmoid, olfactory foramen

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27
Q

Function of the optic nerve

Pathway?

A

F: Vision from retina
P: Optic canal/ foremen

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28
Q

The X shaped structure with the optic nerve

A

Optic chiasm

29
Q

Some information of the eyes crosses to the opposite side via…

A

Optic chiasm

30
Q

Function of the oculomotor nerve

A

Somatic Motor to most muscles that move eye and parasympathetic to smooth muscle (pupil and lens)

31
Q

Pathway through the skull: superior orbital fissure

What nerves?

A

Oculomotor, trochlear, abducens

32
Q

Function of trochlear nerve and abducens nerve

A

Trochlear: somatic Motor to superior oblique

Abducens; somatic motor to lateral rectus

33
Q

Trochlea means

A

Pulling

34
Q

Levator palpebrae superioris function

A

Pulls up on upper eyelid

35
Q

The lateral rectus muscle of the eye is located

A

Outer region

36
Q

The medial rectus muscle of the eye is located

A

Inner part of eye

37
Q

Movements of the eye: inferior oblique

A

Up and out

38
Q

Movements of the eye: lateral rectus

A

Outward

39
Q

Movements of the eye: superior oblique

A

Down and out

40
Q

Movements of the eye: superior rectus

A

Up and in

41
Q

Movements of the eye: medial rectus

A

Inward

42
Q

Movements of the eye: inferior rectus

A

Down and in

43
Q

What are the muscles of the eye

A

Inferior oblique, superior oblique, lateral rectus, medial rectus, superior rectus, and inferior rectus

44
Q

What nerve controls the lateral rectus

A

Abducens VI Nerve

45
Q

What nerve controls the superior oblique eye muscle

A

Trochlear nerve IV

46
Q

What nerve controls inferior oblique muscle, superior rectus, medial rectus, and inferior rectus of eye

A

Oculomotor III

47
Q

Three divisions of the trigeminal nerve (V)

A

Ophthalmic, Maxillary, and mandibular division

48
Q

Function of the Opthalamic division

A

Sensation from skin to face, cornea and paranasal sinuses

49
Q

Pathway through skull of the ophthalmic division

A

Superior orbital fissure

50
Q

Function of the maxillary division

A

Sensation from skin of the face, upper teeth and paranasal sinuses

51
Q

Pathway through skull of maxillary division

A

Foremen rotundum

52
Q

Function of mandibular division (V3)

A

Sensation from skin of face, lower teeth and tongue, motor to muscles of mastication

53
Q

Pathway through skull of mandibular division

A

Foremen ovale

54
Q

Function of facial nerve (VII)

A

Somatic Motor to muscles of facial expression, visceral motor tear gland, salivary glands, and taste from tongue

55
Q

Pathway through skull of facial nerve

A

Internal auditory meatus

56
Q

Function of the vestibulocochlear nerve (VIII)

A

Hearing and balance

57
Q

Pathway through skull of the vestibulocochlear nerve

A

internal auditory meatus

58
Q

Glossopharyngeal nerve function (IX)

A

Motor to parotid gland, general sensation (touch) and taste from tongue

59
Q

Glossopharyngeal nerve pathway through nerve (1/3)

A

Front of tongue, Jugular foramen

60
Q

Sensation of tongue, (1/2) General sensation and taste comes from

A

CN IX glossopharyngeal, front of tongue

61
Q

General sensation of tongue (2/3) comes from

A

Front of tongue, mandibular division of trigeminal nerve

62
Q

Taste of tongue (2/3) comes from

A

Facial nerve

63
Q

Functions of vagus nerve (X)

A

Speaking, swallowing, somatic motor to heart, bronchi and muscles of digestive tract, and sensation from larynx and pharynx

64
Q

Pathway through the skull of vagus nerve

A

Jugular foramen

65
Q

Function of accessory nerve (XI)

A

Motor to trapezius and sternocleomastoid

66
Q

Pathway through the skull of accessory nerve (XI)

A

Jugular foramen

67
Q

Hypoglossal nerve function (XII)

A

Somatic Motor to muscles of tongue

68
Q

Pathway through skull of hypoglossal nerve

A

Hypoglossal foramen

Anatomy (25 decks)

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