MR internal auditory canals axial - labeling questions

The labeled structures are (excluding the correct side):

1. medulla oblongata

2. occipital condyle

3. falx cerebelli

4. cerebellar tonsil

5. pars vascularis of jugular foramen

6. cerebellar hemisphere

7. premedullary cistern

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

9. cisternal segment of the vagus nerve

10. cisternal segment of the glossopharyngeal nerve

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

12. cochlear aqueduct

13. flocculus

14. uvula of the vermis

15. posterior semicircular canal

16. basal turn of the cochlea

17. sigmoid sinus

18. clivus

19. transverse sinus

20. middle cerebellar peduncle

21. cisternal segment of the vestibulocochlear nerve

22. cisternal segment of the facial nerve

23. apical turn of the cochlea

24. vestibule

25. petrous segment of the internal carotid artery

26. anterior inferior cerebellar artery

27. cerebellopontine angle cistern

28. internal auditory (acoustic) canal

29. lateral semicircular canal

30. intracanalicular loop of the anterior inferior cerebellar artery

31. middle turn of the cochlea

32. canalicular segment of the vestibulocochlear nerve

33. canalicular segment of the facial nerve

34. porus acousticus

35. abducens nerve

36. fourth ventricle

37. basilar artery

38. Dorello’s canal

39. Meckel’s cave

40. superior (anterior) semicircular canal

41. pons

42. cisternal (preganglionic) segment of the trigeminal nerve

43. trigeminal ganglion

44. straight sinus

45. porus trigeminus

46. cisternal segment of the trochlear nerve

47. cavernous segment of the internal carotid artery

48. tentorium cerrebelli

49. vermis

50. prepontine cistern

51. superior cerebellar peduncle

The same normal MRI IAMs without labels for reference.