Cranial nerve

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Last updated 1:11 AM on 6/29/26
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8 Terms

1
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CN III (3) – Oculomotor

Check for PERRLA and ptosis (drooping eyelid).

2
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CN IV (4) – Trochlear

Perform the 6 cardinal fields of gaze to follow your finger.

3
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CN VI (6) – Abducens

Perform the 6 cardinal fields of gaze to follow your finger.

4
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CN VII (7) – Facial

Ask the patient to smile, raise eyebrows, and close eyes tightly.

5
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CN VIII (8) – Vestibulocochlear

Conduct the whisper test or finger-rub test.

6
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CN IX (9) – Glossopharyngeal

Instruct the patient to say 'Ahhh' and observe the uvula rise.

7
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CN X (10) – Vagus

Instruct the patient to say 'Ahhh' and ensure the soft palate rises and uvula remains midline.

8
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CN XI (11) – Accessory

Assess by having the patient shrug shoulders and turn head against resistance.