Sagittal view of the corona radiata, internal capsule and basal ganglia. The corona radiata is a fan-shaped white matter sheet that is continuous ventrally with the internal capsule. Corticospinal, corticobulbar, and corticopontine fibers descend within the corona radiata and internal capsule to reach the brainstem and spinal cord.  Dorsally, the corona radiata merges with the centrum semiovale, an oval shaped amalgamation of projection, associational and commissural white matter tracts that lies beneath the cerebral cortex. The globus pallidus is located lateral to the internal capsule and is separated by the latter structure from the thalamus (not visible in this dissection) and the head of the caudate.  (Image courtesy of AL Rhoton, Jr.)