1. Mesencephalon
2. Pons
3. Sulcus bulbopontinus
4. Medulla oblongata -pyramis
5. Decussatio pyramidum
6. Tuberculum gracile
7. Apertura mediana ventriculi quarti
8. Plexus choroideus
9. Fastigium
10 Ventriculus quartus
11. Velum medullare superius
12. Lamina tecti
13. Aquaeductus cerebri
14. Decussatio pedunculorum
cerebellarum sup.