1. M-I NEUROSCIENCES
SECOND PRACTICE PRACTICAL EXAM
Dr. G.R. Leichnetz

2. 1. What clinical deficit(s) would result from a restricted unilateral lesion of the dorsal funiculus at this level of the spinal cord? Be specific.
A. Contralateral loss of proprioception and fine touch in the leg B. Ipsilateral loss of proprioception and fine touch in the leg
C. Ipsilateral loss of pain and temperature in the leg
D. Contralateral loss of pain and temperature in the leg
E. Ipsilateral loss of proprioception and fine touch in the arm & leg

3. 1. What clinical deficit(s) would result from a restricted unilateral lesion of dorsal funiculus at this level of the spinal cord? Be specific.
A. Contralateral loss of proprioception and fine touch in the leg B. Ipsilateral loss of proprioception and fine touch in the leg
C. Ipsilateral loss of pain and temperature in the leg
D. Contralateral loss of pain and temperature in the leg
E. Ipsilateral loss of proprioception and fine touch in the arm & leg

4. 2. Neurons in this pale nucleus are involved in gating mechanisms
for the modulation of pain Identify the nucleus.
Posteromarginal nucleus B. Chief sensory nucleus of the dorsal horn C. Nucleus proprius D. Substantia gelatinosa E. Nucleus cuneatus

5. 2. Neurons in this pale nucleus are involved in gating mechanisms
for the modulation of pain Identify the nucleus.
Posteromarginal nucleus B. Chief sensory nucleus of the dorsal horn C. Nucleus proprius D. Substantia gelatinosa E. Nucleus cuneatus

6. 3. This nucleus contains the cell bodies of origin of what tract?
A. Lateral spinothalamic tract B. Anterior spinothalamic tract C. Dorsal spinocerebellar tract D. Ventral spinocerebellar tract E. Medial lemniscus

7. 3. This nucleus contains the cell bodies of origin of what tract?
A. Lateral spinothalamic tract B. Anterior spinothalamic tract C. Dorsal spinocerebellar tract D. Ventral spinocerebellar tract E. Medial lemniscus

8. 4. Where are the cell bodies of origin of this tract located?
Be specific.
A. Ipsilateral dorsal horn B. Contralateral dorsal horn C. Ipsilateral dorsal root ganglia below T D. Ipsilateral dorsal root ganglia above T E.Contralateral dorsal root ganglia above T6

9. 4. Where are the cell bodies of origin of this tract located?
Be specific.
A. Ipsilateral dorsal horn B. Contralateral dorsal horn C. Ipsilateral dorsal root ganglia below T D. Ipsilateral dorsal root ganglia above T E.Contralateral dorsal root ganglia above T6

10. 5. To what thalamic nucleus do neurons in this region of the
spinal cord gray
matter project?
Be specific.
Ipsilateral ventrolateral nucleus of the thalamus B. Contralateral ventral posterolateral nucleus of the thalamus C. Ipsilateral ventral posterolateral nucleus of the thalamus D. Ipsilateral ventral posteromedial nucleus of the thalamus E. Contralateral ventral posteromedial nucleus of the thalamus

11. 5. To what thalamic nucleus do neurons in this region of the
spinal cord gray
matter project?
Be specific.
Ipsilateral ventrolateral nucleus of the thalamus B. Contralateral ventral posterolateral nucleus of the thalamus C. Ipsilateral ventral posterolateral nucleus of the thalamus D. Ipsilateral ventral posteromedial nucleus of the thalamus E. Contralateral ventral posteromedial nucleus of the thalamus

12. 6. What sensory modality(ies) is (are) associated with this nucleus
6. What sensory modality(ies) is (are) associated with this nucleus? Be specific. Include the region.
A. Conscious proprioception and fine touch in the contralateral leg B. Conscious proprioception and fine touch in the ipsilateral arm C. Pain and temperature in the ipsilateral arm D. Pain and temperature sensation in the contralateral arm E. Pain and temperature in the ipsilateral head

13. 6. What sensory modality(ies) is (are) associated with this nucleus
6. What sensory modality(ies) is (are) associated with this nucleus? Be specific. Include the region.
A. Conscious proprioception and fine touch in the contralateral leg B. Conscious proprioception and fine touch in the ipsilateral arm C. Pain and temperature in the ipsilateral arm D. Pain and temperature sensation in the contralateral arm E. Pain and temperature in the ipsilateral head

14. 7. Where does this nucleus project? Be specific.
A. Contralateral VPL nucleus of the thalamus B. Ipsilateral VPL nucleus of the thalamus C. Contralateral VPM nucleus of the thalamus D. Ipsilateral anterior lobe of the cerebellum E. Contralateral anterior lobe of the cerebellum

15. 7. Where does this nucleus project? Be specific.
A. Contralateral VPL nucleus of the thalamus B. Ipsilateral VPL nucleus of the thalamus C. Contralateral VPM nucleus of the thalamus D. Ipsilateral anterior lobe of the cerebellum E. Contralateral anterior lobe of the cerebellum

16. 8. Where are the cell bodies of origin located for the majority of fibers in this tract?
Geniculate ganglion B. Nucleus dorsalis of Clarke C. Dorsal horn of spinal cord D. Dorsal root ganglia E. Trigeminal ganglion

17. 8. Where are the cell bodies of origin located for the majority of fibers in this tract?
Geniculate ganglion B. Nucleus dorsalis of Clarke C. Dorsal horn of spinal cord D. Dorsal root ganglia E. Trigeminal ganglion

18. 9. Where does this nucleus project? Be specific.
Ipsilateral VPL nucleus of the thalamus B. Contralateral VPL nucleus of the thalamus C. Ipsilateral VPM nucleus of the thalamus D. Contralateral VPM nucleus of the thalamus E. Ipsilateral anterior lobe of the cerebellum

19. 9. Where does this nucleus project? Be specific.
Ipsilateral VPL nucleus of the thalamus B. Contralateral VPL nucleus of the thalamus C. Ipsilateral VPM nucleus of the thalamus D. Contralateral VPM nucleus of the thalamus E. Ipsilateral anterior lobe of the cerebellum

20. 10. Where are the cell bodies of origin of the fibers in this tract located?
A. Trigeminal ganglion B. Nucleus gracilis and cuneatus C. Geniculate ganglion and inferior ganglia of C.N. IX and X D. Superior ganglia of C.N. IX and X E. Vestibular complex

21. 10. Where are the cell bodies of origin of the fibers in this tract located?
A. Trigeminal ganglion B. Nucleus gracilis and cuneatus C. Geniculate ganglion and inferior ganglia of C.N. IX and X D. Superior ganglia of C.N. IX and X E. Vestibular complex

22. 11. Where does this tract terminate? Be specific.
A. Ipsilateral nucleus gracilis and cuneatus B. Ipsilateral VPL nucelus of the thalamus C. Contralateral VPL nucleus of the thalamus D. Ipsilateral inferior colliculus E. Contralateral VPM nucleus of the thalamus

23. 11. Where does this tract terminate? Be specific.
A. Ipsilateral nucleus gracilis and cuneatus B. Ipsilateral VPL nucleus of the thalamus C. Contralateral VPL nucleus of the thalamus D. Ipsilateral inferior colliculus E. Contralateral VPM nucleus of the thalamus

24. 12. What functional component is associated with this nucleus?
A. GSA B. GSE C. GVA D. SVA E. GVE

25. 12. What functional component is associated with this nucleus?
A. GSA B. GSE C. GVA D. SVA E. GVE

26. 13. What clinical deficit would result from a restricted lesion of the major sensory tract that ascends in this region of the brainstem at this level? Be specific.
A. Ipsilateral loss of proprioception and fine touch in the body B. Contralateral loss of proprioception and fine touch in the body C. Ipsilateral loss of pain and temperature in the head D. Ipsilateral loss of pain and temperature in the body E. Contralateral loss of pain and temperature in the body

27. 13. What clinical deficit would result from a restricted lesion of the major sensory tract that ascends in this region of the brainstem at this level? Be specific.
A. Ipsilateral loss of proprioception and fine touch in the body B. Contralateral loss of proprioception and fine touch in the body C. Ipsilateral loss of pain and temperature in the head D. Ipsilateral loss of pain and temperature in the body E. Contralateral loss of pain and temperature in the body

28. 14. What sensory modality is associated with these two nuclei?
A. Vestibular sensation B. Audition (hearing) C. SSA D. SVA E. Vision

29. 14. What sensory modality is associated with these two nuclei?
A. Vestibular sensation B. Audition (hearing) C. SSA D. SVA E. Vision

30. 15. Name the tract through which this nuclear complex projects to extraocular motor nuclei.
A. Medial lemniscus B. Lateral lemniscus C. Medial longitudinal fasciculus D. Spinal lemniscus E. Vestibuloocular tract

31. 15. Name the tract through which this nuclear complex projects to extraocular motor nuclei.
A. Medial lemniscus B. Lateral lemniscus C. Medial longitudinal fasciculus D. Spinal lemniscus E. Vestibuloocular tract

32. 16. What functional component is associated with this nucleus?
A. Somatomotor B. GSE C. Branchiomotor D. GVE E. SVE

33. 16. What functional component is associated with this nucleus?
A. Somatomotor B. GSE C. Branchiomotor D. GVE E. SVE

34. 17. Identify this sensory tract.
Fasciculus cuneatus B. Medial lemniscus C. Lateral lemniscus D. Inferior cerebellar peduncle E. Spinal lemniscus

35. 17. Identify this sensory tract.
Fasciculus cuneatus B. Medial lemniscus C. Lateral lemniscus D. Inferior cerebellar peduncle E. Spinal lemniscus

36. 18. Where does this nucleus primarily project? Be specific.
A. Contralateral VPM thalamic nucleus B. Ipsilateral VPM thalamic nucleus C. Ipsilateral masticatory muscles D. Contralateral VPL thalamic nucleus E. Ipsilateral VPL thalamic nucleus

37. 18. Where does this nucleus primarily project? Be specific.
A. Contralateral VPM thalamic nucleus B. Ipsilateral VPM thalamic nucleus C. Ipsilateral masticatory muscles D. Contralateral VPL thalamic nucleus E. Ipsilateral VPL thalamic nucleus

38. 19. Where does this nucleus project?
A. Contralateral VPL thalamic nucleus B. Ipsilateral VPL thalamic nucleus C. Ipsilateral muscles of mastication D. Contralateral VPM thalamic nucleus E. Ipsilateral facial muscles

39. 19. Where does this nucleus project?
A. Contralateral VPL thalamic nucleus B. Ipsilateral VPL thalamic nucleus C. Ipsilateral muscles of mastication D. Contralateral VPM thalamic nucleus E. Ipsilateral facial muscles

40. 20. Where are the cell bodies of origin of the fibers in this tract located? Be specific.
A. Contralateral vestibular complex B. Contralateral dorsal & ventral cochlear nuclei C. Contralateral nucleus gracilis and cuneatus D. Contralateral spinal nucleus of V E. Ipsilateral nucleus gracilis and cuneatus

41. 20. Where are the cell bodies of origin of the fibers in this tract located? Be specific.
A. Contralateral vestibular complex B. Contralateral dorsal & ventral cochlear nuclei C. Contralateral nucleus gracilis and cuneatus D. Contralateral spinal nucleus of V E. Ipsilateral nucleus gracilis and cuneatus

42. 21. Where does this superficial tract primarily terminate?
A. Inferior colliculus B. Superior colliculus C. VPM nucleus of the thalamus D. VPL nucleus of the thalamus E. Oculomotor complex

43. 21. Where does this superficial tract primarily terminate?
A. Inferior colliculus B. Superior colliculus C. VPM nucleus of the thalamus D. VPL nucleus of the thalamus E. Oculomotor complex

44. 22. Where are the cell bodies of origin located of the majority of fibers in this small dark tract?
A. Nucleus gracilis and cuneatus B. Vestibular complex C. Dorsal & ventral cochlear nuclei D. Spinal and chief sensory nuclei of V E. Deep cerebellar nuclei

45. 22. Where are the cell bodies of origin located of the majority of fibers in this small dark tract?
A. Nucleus gracilis and cuneatus B. Vestibular complex C. Dorsal & ventral cochlear nuclei D. Spinal and chief sensory nuclei of V E. Deep cerebellar nuclei

46. 23. What sensory modality is associated with this nucleus?
A. SSA B. Audition C. Vision D. GSA E. Vestibular sensation

47. 23. What sensory modality is associated with this nucleus?
A. SSA B. Audition C. Vision D. GSA E. Vestibular sensation

48. 24. What clinical deficit(s) would result from a restricted unilateral lesion of the tract that runs in this region at this level of the brainstem? Be specific.
Contralateral loss of proprioception and fine touch in the body B. Ipsilateral loss of proprioception and fine touch in the body C. Contralateral loss of pain & temperature in the head D. Ipsilateral loss of pain & temperature in the body E. Contralateral loss of pain & temperature in the body

49. 24. What clinical deficit(s) would result from a restricted unilateral lesion of the tract that runs in this region at this level of the brainstem? Be specific.
Contralateral loss of proprioception and fine touch in the body B. Ipsilateral loss of proprioception and fine touch in the body C. Contralateral loss of pain & temperature in the head D. Ipsilateral loss of pain & temperature in the body E. Contralateral loss of pain & temperature in the body

50. 25. Where do the ascending fibers in this tract terminate?
A. Ventral posterolateral thalamic nucleus (VPL) B. Ventral posteromedial nucleus (VPM) C. Medial geniculate nucleus (MGN) D. Lateral geniculate nucleus (LGN) E. Ventral anterior thalamic nucleus (VA)

51. 25. Where do the ascending fibers in this tract terminate?
A. Ventral posterolateral thalamic nucleus (VPL) B. Ventral posteromedial nucleus (VPM) C. Medial geniculate nucleus (MGN) D. Lateral geniculate nucleus (LGN) E. Ventral anterior thalamic nucleus (VA)

52. 26. What two functional components are associated with the fibers in this cranial nerve?
A. GVA and GVE B. GSE and GVE C. SVE and GVE D. GSA and GVA E. GSA and SVE

53. 26. What two functional components are associated with the fibers in this cranial nerve?
A. GVA and GVE B. GSE and GVE C. SVE and GVE D. GSA and GVA E. GSA and SVE

54. 27. Where does this nucleus project?
A. Cuneus and lingual gyri B. Postcentral gyrus C. Angular gyrus D. Superior temporal gyrus E. Superior transverse temporal gyri

55. 27. Where does this nucleus project?
A. Cuneus and lingual gyri B. Postcentral gyrus C. Angular gyrus D. Superior temporal gyrus E. Superior transverse temporal gyri

56. 28.Where does this small pale nucleus project?
A. Superior oblique muscle of the eye B. Ciliary ganglion C. Levator palpebrae muscle of the eyelid D. Dilator pupillae muscle E. Superior, medial & inferior rectus muscles

57. 28.Where does this small pale nucleus project?
A. Superior oblique muscle of the eye B. Ciliary ganglion C. Levator palpebrae muscle of the eyelid D. Dilator pupillae muscle E. Superior, medial & inferior rectus muscles

58. 29. Where does this thalamic nucleus project?
A. Cuneus and lingual gyri B. Postcentral gyrus C. Superior parietal lobule D. Superior temporal gyrus E. Superior transverse temporal gyri

59. 29. Where does this thalamic nucleus project?
A. Cuneus and lingual gyri B. Postcentral gyrus C. Superior parietal lobule D. Superior temporal gyrus E. Superior transverse temporal gyri

60. 30. Where does this nucleus project?
Precentral gyrus and paracentral lobule B. Postcentral gyrus and paracentral lobule C. Cuneus and lingual gyri D. Superior transverse temporal gyri E. Premotor cortex

61. 30. Where does this nucleus project?
Precentral gyrus and paracentral lobule B. Postcentral gyrus and paracentral lobule C. Cuneus and lingual gyri D. Superior transverse temporal gyri E. Premotor cortex

62. 31. Where are the cell bodies of origin located of the major tract that terminates in this nucleus?
A. Nucleus cuneatus and gracilis B. Dorsal horn of the spinal cord C. Dorsal & ventral cochlear nuclei D. Trigeminal ganglion E. Spinal and chief sensory nuclei of V

63. 32. Where are the cell bodies of origin located of the major tract that terminates in this nucleus?
A. Nucleus cuneatus and gracilis B. Dorsal horn of the spinal cord C. Dorsal & ventral cochlear nuclei D. Trigeminal ganglion E. Spinal and chief sensory nuclei of V

64. 33. Where does this tract terminate?
Cuneus and lingual gyri B. Primary olfactory cortex of the parahippocampal gyrus C. Lateral geniculate nucleus of the thalamus D. Medial geniculate nucleus of the thalamus E. VPL nucleus of the thalamus

65. 33. Where does this tract terminate?
Cuneus and lingual gyri B. Primary olfactory cortex of the parahippocampal gyrus C. Lateral geniculate nucleus of the thalamus D. Medial geniculate nucleus of the thalamus E. VPL nucleus of the thalamus

66. 34. What clinical deficit would result from a lesion of this structure
34. What clinical deficit would result from a lesion of this structure? Be specific.
A. Hypoacusis (partial hearing loss) B. Bitemporal heteronymous hemianopsia C. Contralateral homonymous hemianopsia D. Anosmia (loss of smell) E. Ipsilateral homonymous hemianopsia

67. 34. What clinical deficit would result from a lesion of this structure
34. What clinical deficit would result from a lesion of this structure? Be specific.
A. Hypoacusis (partial hearing loss) B. Bitemporal heteronymous hemianopsia C. Contralateral homonymous hemianopsia D. Anosmia (loss of smell) E. Ipsilateral homonymous hemianopsia

68. 35. What functional component is associated with this tiny structure?
A. Olfaction B. GVA C. SVA D. Vision E. SVE

69. 35. What functional component is associated with this tiny structure?
A. Olfaction B. GVA C. SVA D. Vision E. SVE