Head and Neck Anatomical Structures · USMLE Step 1

A patient cannot look laterally with the right eye. Which nerve is likely damaged?

  1. Oculomotor nerve
  2. Trochlear nerve
  3. Abducens nerve
  4. Optic nerve
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Correct answer: Abducens nerve

The abducens nerve (CN VI) innervates the lateral rectus muscle responsible for abduction of the eye. Damage prevents lateral gaze.

Difficulty: Medium Question 7 of 20

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