At the Level of Trochlear Decussation

1. Medial lemniscus
2. Spinal lemniscus
3. Lateral lemniscus
4. Superior cerebellar peduncle
5. Pigmented nucleus of superior cerebellar peduncle
6. Dorsal nucleus of lateral lemniscus
7. Trochlear decussation
8. Mesencephalic tract and nucleus of trigeminal nerve
9. Dorsal tegmental nucleus
10. Medial longitudinal fasciculus

11. Ventral tegmental nucleus
12. Central tegmental tract
13. Pontine tegmentum
14. Decussation of superior cerebellar peduncle
15. Decussation of transverse pontine fibers
16. Pontine nucleus
17. Transverse pontine fibers
18. Corticospinal tract
19. Cerebral aqueduct

Back to the Tracts and Nuclei