Multiple choice

An old man suffered from stroke, which damaged his right cerebral peduncle, resulting in a loss of motor control on the left side of his body. Due to the close proximity of a cranial nerve to the cerebral peduncles, his attending doctor suspects that dysfunction would also occur in

  1. smell

  2. visual acuity in the right eye

  3. motor control of the right eye muscles

  4. sensation from the right side of the forehead

  5. motor control of the right facial muscles
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, it is correct. The oculomotor nerve (III) is closely associated with the cerebral peduncles. A stroke in this region can produce losses in both structures (superior alternating hemiplegia or Weber's syndrome).

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