Editing Internal capsule (section)

=== Focal lesions ===
Due to the orderly somatotropic arrangement of elements of the posterior limb of the internal capsule, small lesions can produce selective functional deficits.<ref name="Waxman-2009" />

Lesions of the genu of the internal capsule affect fibers of the [[corticobulbar tract]].{{Citation needed|date=June 2023}}

The primary motor cortex sends its axons through the posterior limb of the internal capsule. Lesions, therefore, result in a contralateral [[hemiparesis]] or hemiplegia. While symptoms of weakness due to an isolated lesion of the posterior limb can initially be severe, recovery of motor function is sometimes possible due to spinal projections of premotor cortical regions that are contained more rostrally in the internal capsule.<ref name="Emos-2022" />