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Exploration of the cerebellum and brain stem from the medial aspect

Midsagittal section

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Image #27-1
Bassett Image
Diagram Image
Legend Image
Exploration of the cerebellum and brain stem from the medial aspect
Midsagittal section
The midline representations of the lobular divisions of the cerebellum are visible in this section which cuts through the vermis. The third ventricle, cerebral aqueduct and fourth ventricle are demonstrated. Little detail is evident in the tegmentum of the medulla, pons and mesencephalon because the cut passes through the raphe.
  1. Third ventricle and thalamus
  2. Posterior commissure
  3. Quadrigeminal plate
  4. Cerebral aqueduct and mesencephalic tegmentum
  5. Central lobule and decussation of superior cerebellar peduncle
  6. Anterior medullary velum and cerebellar lingula
  7. Posterior recess interpeduncular fossa
  8. Median eminence rhomboid fossa
  9. Fastigial nucleus
  10. Superior fovea rhomboid fossa
  11. Dorsal part of pons
  12. Nodulus
  13. Basilar part of pons
  14. Striae medullares
  15. Basilar artery
  16. Wing of gray matter
  17. Nucleus hypoglossal nerve
  18. Medulla oblongata
  19. Transverse cerebral fissure
  20. Declive
  21. Primary fissure
  22. Culmen (pointer on medullary substance of this lobule)
  23. Folium vermis
  24. Tuber vermis
  25. Pyramid (vermis)
  26. Uvula (vermis)
  27. Choroid plexus fourth ventricle
  28. Arachnoid
  29. Tonsil (ventral paraflocculus)
  30. Obex
  31. Central canal