Gross Anatomy USMLE Step 1 Practice Question
A 29-year-old woman presents to the ED with vertical diplopia after striking her head on a low doorway. Vital signs: BP 128/82, HR 88, RR 16, Temp 37.2°C, SpO2 98% on room air. Symptoms worsen when reading and descending stairs. She compensates by tilting her head away from the affected side. Neuroimaging reveals no acute findings. She denies hearing loss or facial weakness. Which cranial nerve is most likely injured?
Answer choices
- AFacial nerve
- BTrochlear nerveCorrect answer
- COculomotor nerve
- DMandibular division of trigeminal nerve
- EAbducens nerve
- FVestibulocochlear nerve
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