11. The secondary neuronal axons continue to ascend ipsilaterally and then pass into the cerebellum via the inferior cerebellar peduncle . 12. Then the fibers decussate and form the middle cerebellar peduncle , terminating in the cerebellar cortex as mossy fibers. 13. The pontine axons projects via the contralateral middle cerebellar peduncle , terminating in the cerebellar cortex as mossy fibers. 14. The fossa is bounded on either side by the inferior cerebellar peduncle , which connects the medulla to the cerebellum. 15. Moving rostrally, the inferior, middle, and superior cerebellar peduncles are found connecting the midbrain to the cerebellum. 16. Directly rostral to the superior cerebellar peduncle , there is the superior medullary velum and then the two trochlear nerves. 17. The axons of the third-order neurons cross the midline and enter the cerebellum through the inferior cerebellar peduncle . 18. The SCA supplies blood to most of the cerebellar cortex, the cerebellar nuclei, and the superior cerebellar peduncles . 19. Their axons leave medially through the hilum, cross the midline, and ascend into the cerebellum via the inferior cerebellar peduncle . 20. Most of these fibers cross over to the contralateral lateral funiculus via the anterior white commissure and through the superior cerebellar peduncle .
