Cranial Nerve Table Flashcards

1
Q

CN I foramen?

A

Cribriform plate

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2
Q

CN II foramen?

A

Optic canal (foramen)

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3
Q

CN III foramen?

A

Superior orbital fissure

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4
Q

CN IV foramen?

A

Superior orbital fissure

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5
Q

CN V1 foramen?

A

Superior orbital fissure

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6
Q

CN V2 foramen?

A

Foramen rotundum

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7
Q

CN V3 foramen?

A

Foramen ovale

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8
Q

CN VI foramen?

A

Superior orbital fissure

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9
Q

CN VII foramen?

A

Internal auditory meatus

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10
Q

CN VIII foramen?

A

Internal auditory meatus

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11
Q

CN IX foramen?

A

Jugular foramen

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12
Q

CN X foramen?

A

Jugular foramen

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13
Q

CN XI foramen?

A

Foramen magnum and jugular foramen

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14
Q

CN XII foramen?

A

Hypoglossal canal

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15
Q

GSE

A

General somatic efferent

- Motor to voluntary mm.

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16
Q

GSA

A

General somatic afferent

- Sensation from skin, muscle, joints

17
Q

GVE

A

General visceral efferent

  • Motor to smooth muscle and glands
    • think parasymp
18
Q

GVA

A

General visceral afferent

- Sensation from internal organs

19
Q

SVE

A

Special visceral efferent

  • Voluntary motor to pharyngeal arch (mm. of mastication, facial expression, pharynx, some small mm. attaching to hyoid bone)
    • Gill evolution (Law & Order SVE)
20
Q

SVA

A

Special visceral afferent

- Taste and smell

21
Q

SSA

A

Special somatic afferent

- Vision, hearing, balance (eyes and ears)

22
Q

SSE

A

Trick question, doesn’t exist

23
Q

CN I components and main structures innervated?

A

SVA: Olfactory nasal mucosa (smell)

24
Q

CN II components and main structures innervated?

A

SSA: Rods and cones of retina (vision)

25
Q

CN III components and main structures innervated?

A

GVE: (via ciliary ganglion) to sphincter pupillae and ciliary mm. (parasymp)

GSE: sup, med, and inf recti and inf oblique mm. of eye and levator palpebrae superioris m.

26
Q

CN IV components and main structures innervated?

A

GSE: Superior oblique m.

27
Q

CN V components and main structures innervated?

A

GSA:
V1- skin of upper part of face (upper orbit and above)
V2- skin of mid-face, upper teeth, nasal and palatal mucosa
V3- skin of lower face and jaw, floor of mouth, ant 2/3 tongue mucosa, lower teeth and gums, ear pinna and canal

SVE: Mm. of mastication, ant belly of digastric m., tensor tympani, mylohyoid, tensor palatini (1st arch mm.)

28
Q

CN VI components and main structures innervated?

A

GSE: Lateral rectus m.

29
Q

CN VII components and main structures innervated?

A

GVA: deep sensation from soft palate

SVA: taste buds of ant. 2/3 tongue

GSA: sensation from small part ear pinna

GVE: motor to submandibular, sublingual, lacrimal glands, glands of nasal mucosa

SVE: motor to mm. of facial expression, post belly digastric, stylohyoid, stapedius mm.

30
Q

CN VIII components and main structures innervated?

A

SSA: organ of corti in cochlea duct. Semicircular canals, utricle and saccule

31
Q

CN IX components and main structures innervated?

A

GVA: deep sensory to post tongue, soft palate, pharynx, mucosa of tymp cavity, post auditory tube, carotid body and sinus

SVA: Taste buds post 1/3 tongue and adajcent pharynx

GSA: Gen sensory from small part of ear pinna and canal

GVE: Parotid salivary gland (secretomotor)

SVE: Stylopharyngeal m.

32
Q

CN X components and main structures innervated?

A

GVA: Visc sens from esophagus, trachea, pharynx, larynx, and abd viscera

SVA: Taste buds in epiglottis and glottis

GSA: Sens from small part of ear pinna, canal, and tymp membrane

GVE: thoracic and abdominal viscera

SVE: Mm. of the pharynx and larynx, levator palatini and cricothyroid

33
Q

CN XI components and main structures innervated?

A

SVE: motor to SCM and trapezius mm.

34
Q

CN XII components and main structures innervated?

A

GSE: Intrinsic and extrinsic mm. of the tongue (palatoglossus excepted)