Sections from the rostral pons are significant for pontine nuclei and multiple transversely oriented pontocerebellar fibers en route to the contralateral cerebellum. Interspersed among these horizontally running axon are longitudinally running corticospinal fibers (eFig. 9.37). Dorsal to this collection of fiber bundles, the medial lemniscus is oriented horizontally, forming a borderlike structure between the basal and tegmental portion of the pons (eFig. 9.37). At the lateral edge of the medial lemniscus, the spinothalamic tract can be seen, because it neighbors the superior cerebellar peduncle (eFig. 9.37). Near the midline, the medial longitudinal fasciculus resides just ventral to the periaqueductal gray matter.