The superior cerebellar peduncles (bracchia conjunctiva) emerge from the cerebellum and ascend to form the lateral portion of the roof of the fourth ventricle, where they enter the brainstem below the inferior colliculi.

The superior cerebellar peduncles represent the main output route from the cerebellum, and as such, most of their fibers are efferent.

They emerge together to ascend in the roof of the fourth ventricle and proceed anteriorly to the midbrain tegmental area medial to the lateral lemniscus.

The fibers of the anterior spinocerebellar tract originate in Clarke's column of the spinal cord and cross in the anterior white commissure to the lateral funiculus, where they ascend to upper pontine levels before crossing back to enter the cerebellum through the superior peduncle.

The tectocerebellar tracts emerge from the superior and inferior colliculi on both sides, terminating in the intermediate vermis (culmen, declive, folium, tuber, pyramid) and the lobulus simplex.