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810 Anatomy

A 54 year old man is evaluated by a neurologist because of a gait disorder. When the physician passively moves the patient’s right great toe upward or downward, the patient cannot accurately repo the direction of motion, although his perception of light touch and painful stimuli is unimpaired.This finding can best be explained by a lesion of which of the following structures?

ARight fasciculus cuneatus
BRight fasciculus gracilis
CRight lateral lemniscus
DRight medial lemniscus
Anatomy
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