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CMM401/501 Unit 3 Cards > Orbit & Ear - Nerves > Flashcards

Orbit & Ear - Nerves Flashcards

1
Q

What is this structure?

A

Cranial Nerve II (Optic Nerve)

Cranial Nerve II (Optic Nerve)

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2
Q

Motor/Sensory/Both?

A

Special sensory (vision)

Cranial Nerve II (Optic Nerve)

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3
Q

Origin?

A

Diencephalon

Cranial Nerve II (Optic Nerve)

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4
Q

Skull Foramen?

A

Optic canal

Cranial Nerve II (Optic Nerve)

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5
Q

Innervates?

A

Retina of eyeball for vision

Cranial Nerve II (Optic Nerve)

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6
Q

What is this structure?

A

Cranial Nerve III (Oculomotor)

Cranial Nerve III (Oculomotor)

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7
Q

Motor/Sensory/Both?

A

Motor
* Somatic & Parasympathetic

Cranial Nerve III (Oculomotor)

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8
Q

What is this structure?

A

Cranial Nerve VIII (Vestibulocochlear)

Cranial Nerve VIII (Vestibulocochlear)

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9
Q

What is this structure?

A

Vestibular Division (CN VIII)

Vestibular Division (CN VIII)

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10
Q

What is this structure?

A

Cochlear Division (CN VIII)

Cochlear Division (CN VIII)

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11
Q

What is this structure?

A

Lesser Petrosal Nerve

Lesser Petrosal Nerve

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12
Q

What is this structure?

A

Cranial Nerve IV (Trochlear)

Cranial Nerve IV (Trochlear)

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13
Q

What is this structure?

A

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

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14
Q

What is this structure?

A

Frontal Nerve

Frontal Nerve

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15
Q

What is this structure?

A

Lacrimal Nerve

Lacrimal Nerve

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16
Q

What is this structure?

A

Cranial Nerve VI (Abducens)

Cranial Nerve VI (Abducens)

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17
Q

What is this structure?

A

Cranial Nerve VII (Facial)

Cranial Nerve VII (Facial)

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18
Q

What is this structure?

A

Chorda Tympani

Chorda Tympani

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19
Q

What is this structure?

A

Geniculate Ganglion

Geniculate Ganglion

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21
Q

Source?

A

Midbrain

Cranial Nerve III (Oculomotor)

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22
Q

Skull Foramen?

A

Superior orbital fissure

Cranial Nerve III (Oculomotor)

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23
Q

Innervates?

A
  • Somatic motor to muscles in orbit
  • Parasympathetic innervation to muscles of iris and ciliary musclescontrolling lens shape.

Cranial Nerve III (Oculomotor)

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24
Q

Motor/Sensory/Both?

Cranial Nerve IV (Trochlear)
A

Motor - somatic

Cranial Nerve IV (Trochlear)

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25
Q

Source?

Cranial Nerve IV (Trochlear)
A

Midbrain

Cranial Nerve IV (Trochlear)

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26
Q

Foramen?

Cranial Nerve IV (Trochlear)
A

Superior orbital fissure

Cranial Nerve IV (Trochlear)

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27
Q

Innervates?

Cranial Nerve IV (Trochlear)
A

Motor to superior oblique muscle in orbit

Cranial Nerve IV (Trochlear)

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28
Q

Motor/Sensory/Both?

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

A

Sensory

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

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29
Q

Source?

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

A

Pons

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

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30
Q

Innervates?

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

A

Sensation of orbit, superior nasal cavity, forehead

Cranial Nerve V1 (Trigeminal - Opthalmic Division)

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31
Q

Motor/Sensory/Both?

Cranial Nerve VII (Facial)

A

Special sensory - taste from anterior 2/3 of tongue
Motor- somatic & parasympathetic

Cranial Nerve VII (Facial)

32
Q

Source?

Cranial Nerve VII (Facial)

A

Junction between pons and medulla

Cranial Nerve VII (Facial)

33
Q

Skull Foramen?

Cranial Nerve VII (Facial)

A

Internal acoustic meatus to facial canal, out stylomastoid
foramen in floor of temporal bone

Cranial Nerve VII (Facial)

34
Q

Innervates?

Cranial Nerve VII (Facial)

A
  • Sensation of taste to anterior 2/3 of tongue.
  • Somatic motor control to muscles of facial expression
  • Stapedius muscle in ear
  • Posterior digastric and stylohyoid
  • Parasympathetic innervation to glands of orbit/nose
  • Submandibular and sublingual salivary glands

Cranial Nerve VII (Facial)

35
Q

Motor/Sensory/Both?

Lacrimal Nerve

A

Sensory

Lacrimal Nerve

36
Q

Source?

Lacrimal Nerve

A

CN V1

Lacrimal Nerve

37
Q

Destination?

Lacrimal Nerve

A

Lacrimal gland

Lacrimal Nerve

38
Q

Innervates?

Lacrimal Nerve

A

Sensory innervation to lateral orbit, lacrimal gland

Lacrimal Nerve

39
Q

Motor/Sensory/Both?

Cranial Nerve VI (Abducens)

A

Motor - Somatic

Cranial Nerve VI (Abducens)

40
Q

Source?

Cranial Nerve VI (Abducens)

A

Junction between pons and medulla

Cranial Nerve VI (Abducens)

41
Q

Skull Foramen?

Cranial Nerve VI (Abducens)

A

Superior orbital fissure

Cranial Nerve VI (Abducens)

42
Q

Innervates?

Cranial Nerve VI (Abducens)

A

Motor to lateral rectus muscle in orbit

Cranial Nerve VI (Abducens)

43
Q

Origin?

Frontal Nerve

A

Sensory

Frontal Nerve

44
Q

Source?

Frontal Nerve

A

CN V1

Frontal Nerve

45
Q

Skull Foramen?

Frontal Nerve

A

Superior face/forehead

Frontal Nerve

46
Q

Innervates?

Frontal Nerve

A
  • Sensory innervation to orbit
  • Skin of forehead
  • Passes out of orbit and runs up the forehead

Frontal Nerve

47
Q

Source?

Geniculate Ganglion

A

CN VII (Facial) sensory nerves

Geniculate Ganglion

48
Q

Innervates/Location?

Geniculate Ganglion

A
  • Contains cell bodies for taste sensory nerves from anterior 2/3 of tongue.
  • Junction point where greater petrosal nerve branches from CN VII.
  • Located deep within petrous temporal bone near middle ear

Geniculate Ganglion

49
Q

Motor/Sensory/Both?

Greater petrosal nerve

A

Motor - parasympathetic

Greater petrosal nerve

50
Q

Source?

Greater petrosal nerve

A

CN VII (Facial)

Greater petrosal nerve

51
Q

Skull Foramen?

Greater petrosal nerve

A

Pterygoid canal of sphenoid

Greater petrosal nerve

52
Q

Innervates?

Greater petrosal nerve

A

Parasympathetic innervation to glands of orbit and nose

Greater petrosal nerve

53
Q

Pathway?

Greater petrosal nerve

A

Branches off of CN VII at geniculate ganglion, passes rostrally through petrous temporal along floor of skull and passes through sphenoid to bring parasympathetic
fibers to CN V2 branches

Greater petrosal nerve

54
Q

Motor/Sensory/Both?

Chorda Tympani

A
  • Special sensory-taste from anterior 2/3 of tongue
  • Motor-parasympathetic

Chorda Tympani

55
Q

Source?

Chorda Tympani

A

CN VII (Facial)

Chorda Tympani

56
Q

Destination?

Chorda Tympani

A

Lingual nerve

Chorda Tympani

57
Q

Innervates?

Chorda Tympani

A
  • Special sensory innervation (taste) to anterior 2/3 of tongue
  • Parasympathetic motor innervation to the sublingual and submandibular salivary glands

Chorda Tympani

58
Q

Motor/Sensory/Both?

Cranial Nerve VIII (Vestibulocochlear)

A

Special sensory- balance and hearing

Cranial Nerve VIII (Vestibulocochlear)

59
Q

Source?

Cranial Nerve VIII (Vestibulocochlear)

A

Junction between pons and medulla

Cranial Nerve VIII (Vestibulocochlear)

60
Q

Skull Foramen?

Cranial Nerve VIII (Vestibulocochlear)

A

Internal acoustic meatus

Cranial Nerve VIII (Vestibulocochlear)

61
Q

Innervates?

Cranial Nerve VIII (Vestibulocochlear)

A

Special sensory innervation to semicircular canals (balance), and cochlea (hearing).

Cranial Nerve VIII (Vestibulocochlear)

62
Q

Motor/Sensory/Both?

Vestibular Division (CN VIII)

A

Special sensory-balance

Vestibular Division (CN VIII)

63
Q

Source?

Vestibular Division (CN VIII)

A

CN VIII (Vestibulocochlear)

Vestibular Division (CN VIII)

64
Q

Foramen?

Vestibular Division (CN VIII)

A

Semicircular canals

Vestibular Division (CN VIII)

65
Q

Innervates?

Vestibular Division (CN VIII)

A

Special sensory innervation to semicircular canals (balance)

Vestibular Division (CN VIII)

66
Q

Motor/Sensory/Both?

Cochlear Division (CN VIII)

A

Special sensory-hearing

Cochlear Division (CN VIII)

67
Q

Source?

Cochlear Division (CN VIII)

A

CN VIII (Vestibulocochlear)

Cochlear Division (CN VIII)

68
Q

Destination?

Cochlear Division (CN VIII)

A

Cochlea

Cochlear Division (CN VIII)

69
Q

Innervates?

Cochlear Division (CN VIII)

A

Special sensory innervation to cochlea (hearing)

Cochlear Division (CN VIII)

70
Q

Motor/Sensory/Both?

Lesser Petrosal Nerve

A

Motor-parasympathetic

Lesser Petrosal Nerve

71
Q

Source?

Lesser Petrosal Nerve

A

CN IX (Glossopharyngeal)

Lesser Petrosal Nerve

72
Q

Destination?

Lesser Petrosal Nerve

A

Otic Ganglion

Lesser Petrosal Nerve

73
Q

Innervates?

Lesser Petrosal Nerve

A

Parasympathetic innervation to partotid gland

Lesser Petrosal Nerve

74
Q

What is this structure?

A

Greater petrosal nerve

Greater petrosal nerve

CMM401/501 Unit 3 Cards (5 decks)

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