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Neuro III - AJS > Cranial Nerve Basics > Flashcards

Cranial Nerve Basics Flashcards

1
Q

CN 1

A

Olfactory [Sensory]

Smells

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2
Q

CN 2

A

Optic [Sensory]

Sees

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3
Q

CN 3

A

Occulomotor [Motor]

Move eyes
Constrict pupils
Accomodates

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4
Q

CN 4

A

Trochlear [Motor]

Move eyes (Superior Oblique)

**Only CN to cross midline and exit posteriorly

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5
Q

CN 5

A

Trigeminal [Mixed: Somatic motor, somatic sensory]

Chews
Feels front of head

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6
Q

CN 6

A

Abducens [Motor]

Move Eyes (Lateral Rectus)

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7
Q

CN 7

A

Facial [Mixed: Somatic motor, visceral motor, visceral sensory, somatic sensory]

Moves the face
Tastes (anterior 2/3)
Salivates
Cries

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8
Q

CN 8

A

Vestibulocochlear [Sensory]

Hears
Regulates balance

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9
Q

CN 9

A

Glossopharyngeal [Mixed: Somatic motor, visceral motor, visceral sensory, somatic sensory]

Tastes
Salivates
Swallows
Monitors carotid body and sinus

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10
Q

CN 10

A

Vagus [Mixed: Somatic motor, visceral motor, visceral sensory, somatic sensory]

Tastes
Swallows
Lifts palate
Talks
Communication to/from thoraco-abdominal viscera
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11
Q

CN 11

A

Accessory [Motor]

Turns head
Lifts shoulders

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12
Q

CN 12

A

Hypoglossal [Motor]

Moves tongue

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13
Q

Which cranial nerves are purely sensory?

A

CN I - Olfactory
CN II - Optic
CN VIII - Vestibulocochlear

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14
Q

Which cranial nerves are purely motor?

A 
CN III - Occulomotor
CN IV - Trochlear
CN VI - Abducens
CN XI - Accessory
CN XII - Hypoglossal
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15
Q

Which nerves are mixed? What components does each carry?

A

CN V - Trigeminal [Somatic motor, Somatic sensory]

CN VII - Facial [Somatic motor, visceral motor, visceral sensory, somatic sensory]

CN IX - Glossopharyngeal [Somatic motor, visceral motor, visceral sensory, somatic sensory]

CN X - Vagus [Somatic motor, visceral motor, visceral sensory, somatic sensory]

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16
Q

CN III exits the brainstem at the ____.

A

Interpeduncular fossa, between the posterior cerebral a. and the superior cerebellar a.

[Uncal herniation - down and out eye due to loss of all extraocular muscles aside from LR and SO]

Neuro III - AJS (17 decks)

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