Neuroanatomy USMLE Step 1 Practice Question
A 24-year-old male is stabbed in the neck. Neurologic examination reveals left-sided hemiparesis. There is complete loss of discriminatory joint position and vibration sensation below C8 on the left side. On the right side, there is loss of pain and temperature sensation below C8. It can be expected that an MRI of the cervical spinal cord will show which of the following findings?
Answer choices
- AA lesion of the lateral funiculus on the left side
- BA complete transection of the spinal cord
- CA hemisection of the left side of the cordCorrect answer
- DDamage to cervical dorsal roots on the left side
- EA lesion of the dorsal columns of the cord on the left side
- FA lesion of the spinothalamic tract on the right side of the cord
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