Craniofacial Nerves Flashcards

1
Q

What is CNI?

A

Olfactory

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2
Q

Where does CNI attach?

A

Olfactory bulb

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3
Q

Where does CNI go through?

A

Cribiform plate

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4
Q

What are the components for CNI?

A

SVA

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5
Q

What does CNI innervate?

A

olfactory nasal mucosa (smell)

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6
Q

What is CNII?

A

Optic

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7
Q

Where does CNII attach?

A

Optic chiasma

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8
Q

Where does CNII go through?

A

Optic canal

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9
Q

What are the components for CNII?

A

SSA

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10
Q

What does CNII innervate?

A

rods and cones of retina

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11
Q

What is CNIII?

A

Oculomotor

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12
Q

Where does CNIII go through?

A

superior orbital fissure

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13
Q

What are the components for CNIII?

A

GVE and GSE

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14
Q

What component is parasympathetic?

A

GVE

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15
Q

What does CNIII innervate?

A

sphincter pupillae and ciliary muscles, superior, medial and inferior recti and inferior oblique eyeball muscles and levator palpebrae superioris

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16
Q

What is CNIV?

A

Trochlear

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17
Q

Where does CNIV go through?

A

superior orbital fissure

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18
Q

What are the components of CNIV?

A

GSE

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19
Q

What structures does CNIV innervate?

A

superior oblique eyeball muscle

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20
Q

What is CNV?

A

Trigeminal

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21
Q

What is CNV1?

A

Trigeminal Opthalmic

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22
Q

What is CNV2?

A

Trigeminal maxillary

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23
Q

What is CNV3?

A

Trigeminal mandibular

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24
Q

Where does CNV1 go through?

A

Superior orbital fissure

25
Q

Where does CNV2 go through?

A

Foramen rotundum

26
Q

Where does CNV3 go through?

A

foramen ovale

27
Q

What are the components of CNV?

A

GSA and SVE

28
Q

What does CNV1 innervate?

A

skin of upper part of face

29
Q

What does CNV2 innervate?

A

skin of midface, upper teeth, nasal and palatal mucosa

30
Q

What does CNV3 innervate?

A

skin of lower face and jaw, floor of mouth, mucosa of anterior 2/3 of tongue, lower teeth and gums, ear pinna and canal
also motor to muscles of mastication, anterior

31
Q

What is CN VI?

A

Abducens

32
Q

Where does CNVI go through?

A

superior orbital fissure

33
Q

What does CNVI innervate?

A

motor to lateral rectus

34
Q

What are the components of CNVI?

A

GSE

35
Q

What is CNVII?

A

Facial

36
Q

What does CNVII go through?

A

internal auditory meatus

37
Q

What does CNVII innervate?

A

deep sensation from soft palate, taste buds from anterior 2/3 of the tongue, sensation from small part of ear pinna, motor to submandibular and sublingual glands, lacrimal glands, and glands in the nasal mucosa, motor to muscles of facial expression, posterior belly of the digastric mucle, stylohyoid, and stapedius

38
Q

What are the components of CNVII?

A

GVA, SVA, GSA, GVE, SVE

39
Q

What is CNVIII?

A

Auditory

40
Q

Where does CNVIII go through?

A

internal auditory meatus

41
Q

What are the components of CNVIII?

A

SSA (cochlear and vestibular)

42
Q

What does CNVIII innervate?

A

organ of corti in cochlear duct, semicircular canals, utricle, and saccule

43
Q

What is CNIX?

A

Glossopharyngeal

44
Q

What does CNIX go through?

A

jugular foramen

45
Q

What are the components for CNIX?

A

GVA, SVA< GSA, GVE, SVE

46
Q

What does CNIX innervate?

A

deeps sensation from posterior tongue, soft palate, pharynx, mucosa of tympoid cavity, posterior auditory tube, carotid body and sinus, taste buds posterior 1/3 of tongue, adjacent pharynx, general sensory from small part of ear pinna and canal, parotid salivary gland, and stylopharyngeaus muscle

47
Q

What is CNX?

A

Vagus

48
Q

What are the components for CNX?

A

GVA, SVA, GSA, GVE, SVE

49
Q

What does CNX go through?

A

jugular foramen

50
Q

What does CNX innervate?

A

visceral sensory from pharynx, esophogaus, trachea, larynx, and abdominal visceral. taste buds in epiglottis and glottis. sense form small part of ear pinna, canal, and tymp. membrane. thoracic and abdominal viscera. muscles of pharynx, larynx, levator palatine, and cricothyroid.

51
Q

What is CNXI?

A

spinal accessory

52
Q

Where does CNXI go through?

A

foramen mag and jugular foramen

53
Q

What does CNXI innervate?

A

motor to sternocleidomastoid and trapzeius

54
Q

What are the components of CNXI?

A

SVE

55
Q

What is CNXII?

A

hypoglossal

56
Q

Where does CNXII go through?

A

hyperglossal canal

57
Q

What are the components of CNXII?

A

GSE

58
Q

What does CNXII innervate?

A

intrinsic and extrinsic muscles of the tongue (palatoglossus excepted)