Spinal Cord Tracts & Sensory Pathways — Practice
A 70-year-old man develops a lacunar infarct and is found to have a pure motor hemiparesis affecting the face, arm and leg equally, with no sensory or visual loss. The lesion most likely involves the region where descending corticospinal and corticobulbar fibres are most compactly arranged. This region is:
AAnterior commissure
BGenu and posterior limb of the internal capsule
CSplenium of the corpus callosum
DAnterior limb of the internal capsule