The labeled structures are (excluding the correct side):

1. Meckel’s cave

2. clivus

3. basilar artery

4. trigeminal ganglion

5. Dorello’s canal

6. canalicular segment of the abducens nerve

7. prepontine cistern

8. anterior inferior cerebellar artery

9. apical turn of the cochlea

10. cisternal segment of the abducens nerve

11. modiolus

12. middle turn of the cochlea

13. basal turn of the cochlea

14. porus trigeminus

15. intradural segment (V4) of the right (non dominant) vertebral artery

16. pons

17. falciform crest

18. canalicular segment of the cochlear nerve

19. internal auditory (acoustic) canal

20. canalicular segment of the facial nerve

21. intracanalicular loop of the anterior inferior cerebellar artery

22. porus acousticus

23. anterior inferior cerebellar artery

24. canalicular segment of the superior vestibular nerve

25. canalicular segment of the inferior vestibular nerve

26. cisternal segment of the trigeminal nerve

27. premedullary cistern

28. medullary pyramid

29. cochlear aqueduct

30. vestibule

31. lateral semicircular canal

32. cisternal segment of the facial nerve

33. cerebellopontine angle cistern

34. superior (anterior) semicircular canal

35. cisternal segment of the vestibulocochlear nerve

36. pars vascularis of the jugular foramen

37. intradural segment (V4) of the left (dominant) vertebral artery

38. posterior semicircular canal

39. cisternal segment of the glossopharyngeal nerve

40. tentorium cerebelli

41. cisternal segment of the vagus nerve

42. flocculus

43. medulla oblongata

44. middle cerebellar peduncle