KROK 1 2021 – Question 131 · KROK (Medicine) · Human Anatomy

On examination a man presents with convergent strabismus, inward deviation of the eyeball and inability to move the eyeball outward. What nerve is damaged?

  1. A. Trochlear nerve
  2. B. Oculomotor nerve
  3. C. Optic nerve
  4. D. Ophthalmic nerve
  5. E. Abducent nerve
Hint

The lateral rectus muscle moves the eye outward; ask which cranial nerve supplies it and what the unopposed medial rectus then does to the eye position.

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