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Neurology > Cranial Nerve Lesions > Flashcards

Cranial Nerve Lesions Flashcards

1
Q

What does CN I do?

A

Smell

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2
Q

What does CN II do?

A

Vision

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3
Q

What does CN III do?

A

Eye movements, pupil dilation and constriction

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4
Q

What does CN IV do?

A

Superior oblique muscle

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5
Q

What does CN V do?

A

Sensory to anterior 2/3 of tongue, face, motor jaw movement

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6
Q

What does CN VI do?

A

Lateral rectus muscle

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7
Q

What does CN VII do?

A

Facial expression, lacrimal and salivary glands, taste for anterior 2/3 of tongue

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8
Q

What does CN VIII do?

A

Hearing and balance

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9
Q

What does CN IX do?

A

Motor to stylopharyngeus - swallowing and gag reflex, secretion of parotid gland, sensory and taste to posterior 1/3 of the tongue

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10
Q

What does CN X do?

A

Parasympathetic to thoracic and abdominal organs, taste in throat

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11
Q

What does CN XI do?

A

Sternocleidomastoid and trapezius

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12
Q

What does CN XII do?

A

Tongue movement

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13
Q

How would a lesion affecting the left optic nerve present?

A

Total blindness in left eye

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14
Q

How does a trochlear lesion present?

A

Double vision going down stairs

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15
Q

How do you test trigeminal nerve?

A

Sensation to the face, muscles of jaw, jaw jerk, corneal reflex

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16
Q

How do you test abducens?

A

Ability to abduct eye

17
Q

How do you test facial motor function?

A

Inspect face for any weakness or asymmetry, smile, raise eyebrows, puff out the cheeks, frown

18
Q

How do you test sensory facial function?

A

Touch lateral aspect of tongue with sugar/salt/vinegar

19
Q

How do you test vesticulococlear?

A

Tuning fork, nystagmus

20
Q

How do you test glossopharyngeal and vagus?

A

Hoarse or nasal voice, elevation of palate, gag reflex

21
Q

How do you test accessory?

A

Turn head against resistance, shrug shoulders against resistance

22
Q

How do you test hypoglossal?

A

Stick out tongue

Neurology (22 decks)

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