Cranial Nerves Flashcards

1
Q

Olfactory (sensory)

A

CN I

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2
Q

Optic (sensory)

A

CN II

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3
Q

Oculomotor (motor)

A

CN III

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4
Q

Trochlear (motor)

A

CN IV

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5
Q

Trigeminal (sensory & motor)

A

CN V

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6
Q

Abducens (motor)

A

CN VI

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7
Q

Facial (sensory & motor)

A

CN VII

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8
Q

Acoustic (sensory)

A

CN VIII

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9
Q

Glossopharyngeal (sensory & motor)

A

CN IX

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10
Q

Vagus (sensory & motor)

A

CN X

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11
Q

Spinal accessory (motor)

A

CN XI

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12
Q

Hypoglossal (motor)

A

CN XII

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13
Q
  • assess patency by closing off one nostril & asking Pt to inhale
  • perform on both sides
  • test smell
A

CN I Olfactory (sensory)

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14
Q
  • visual test by asking Pt to identify how many fingers you are holding up
  • Snellen chart for far & near vision
  • test visual fields using confrontation
A

CN II Optic (sensory)

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15
Q
  • assess pupils for size, shape, and equality
  • assess 6 cardinal positions of gaze
  • observe for nystagmus in one or both eyes
A

CN III Oculomotor (motor), CN IV Trochlear (motor) & CN VI Abducens (motor)

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16
Q
  • evaluate sensory function by touch & *motor function by movement *
  • ask Pt to identify sharp and dull sensations on the face by evaluating all 3 divisions of the nerve at the scalp (ophthalmic), cheek (maxillary), and chin (mandibular) areas on each side
  • observe the face for atrophy, deviation, and fasciculations
A

CN V Trigeminal (both), includes corneal

17
Q
  • assess by evaluating taste
  • evaluate motor function by observing facial movements during conversation (i.e., raise eyebrows, squeeze eyes shut, smile)
A

CN VII Facial (both)

18
Q
  • evaluate hearing during normal conversation using whisper test
A

CN VIII Acoustic (sensory)

19
Q
  • evaluate sensory function with CN VII
  • evaluate motor function with CN X upon swallowing
A

CN IX Glossopharyngeal

20
Q
  • includes gag reflex
  • evaluate motor component by asking the Pt to open the mouth & stick out the tongue (should be symmetrical)
  • observe the uvula & soft palate for symmetry
  • evaluate sensory component by stimulating the gag reflex
A

CN X Vagus (both)

21
Q
  • evaluate the sternocleidomastoid & trapezius muscles for bulk, tone, strength, & symmetry
A

CN XI Spinal accessory (motor)

22
Q
  • evaluate this function with CN X
  • inspect tongue for symmetry
  • ask Pt to say “light, tight, dynamite”
A

CN XII Hypoglossal (motor)