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First Aid - Neurology > Cranial Nerve and Vessel Pathways - 476 > Flashcards

Cranial Nerve and Vessel Pathways - 476 Flashcards

1
Q

Exits: Cribriform plate (anterior cranial fossa)

A

CN I

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2
Q

Exits: Optic canal (middle cranial fossa)

A

CN II

Ophthalmic artery

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3
Q

Exits: Superior orbital fissure (middle cranial fossa)

A

CN III
CN IV
CN VI
CN V1

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4
Q

Exits: Foramen rotundum (middle cranial fossa)

A

CN V2

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5
Q

Exits: Foramen ovale (middle cranial fossa)

A

CN V3

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6
Q

Exits: Foramen spinosum (middle cranial fossa)

A

Middle meningeal artery

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7
Q

Exits: Internal auditory meatus

A

CN VII

CN VIII

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8
Q

Exits: Jugular foramen

A

CN IX
CN X
CN XI
Internal jugular vein

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9
Q

Exits: Hypoglossal canal

A

CN XII

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10
Q

Exits (and enters): Foramen magnum

A

Brainstem
Spinal root of CN XI (enters)
Vertebral arteries (enters)

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11
Q

CN I (olfactory) - sensory

A

Smell (only CN without thalamic relay to cortex)

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12
Q

CN II (optic) - sensory

A

Sight

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13
Q

CN III (oculomotor) - motor

A

Eye movements (SR, IR, MR, IO)
Pupillary constriction - sphincter pupillae
Accommodation
Eyelid opening - levator palpebrae

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14
Q

CN IV (trochlear) - motor

A

Eye movements (SO)

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15
Q

CN V (trigeminal) - both

A

Muscles of mastication
Facial sensation
Somatosensation from anterior 2/3 of tongue

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16
Q

CN VI (abducens) - motor

A

Eye movement (LR)

17
Q

CN VII (facial) - both

A 
Facial movement
Taste from anterior 2/3 of tongue
Lacrimation
Salvation - submandibular, sublingual
Eyelid closing - orbicularis oculi
Auditory volume modulation - stapedius
18
Q

CN VIII (vestibulocochlear) - sensory

A

Hearing

Balance

19
Q

CN IX (glossopharyngeal) - both

A

Taste and sensation from posterior 1/3 of tongue
Swallowing
Salivation - parotid gland
Monitoring carotid body and sinus chemo- and baroreceptors
Elevation of pharynx/larynx - stylopharyngeus

20
Q

CN X (vagus) - both

A 
Taste from supraglottic region
Swallowing
Soft palate elevation
Midline uvula
Talking
Cough reflex
Parasympathetics to thoracoabdominal viscera
Monitoring aortic arch chemo- and baroreceptors
21
Q

CN XI (accessory spinal) - motor

A

Head turning, shoulder shrugging - SCM, trapezius

22
Q

CN XII (hypoglossal) - motor

A

Tongue movement

First Aid - Neurology (6 decks)

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