Basilar part of pons
[2] The basilar artery feeds into the circle of Willis providing blood supply to the brainstem and cerebellum.In addition to passing through the ventral pons, corticospinal tract fibers go through other structures of the brainstem, including the internal capsule and the crus cerebri.[6] The basal pontine nuclei provides most of the cortical information to the cerebellum received from the corticopontine fibers.[8] A lacunar stroke of the base of the pons is known to cause contralateral dysarthria-clumsy hand syndrome.This article incorporates text in the public domain from page 785 of the 20th edition of Gray's Anatomy (1918)