Cerebral peduncle
By this definition, the cerebral peduncles are also known as the basis pedunculi, while the large ventral bundle of efferent fibers is referred to as the cerebral crus (crus means ‘leg’ in Latin.)Damage to the cerebral peduncles results in unrefined motor skills, imbalance, and lack of proprioception.[5] The corticopontine fibers are found in the outer and inner third of the cerebral peduncle, these are the cortical input to the pontine nuclei.[6] The corticobulbar and corticospinal fibers are found in the middle third of the cerebral peduncle.[7] The corticospinal tract exits the internal capsule and is seen in the mid portion of the cerebral peduncles.