M-I NEUROSCIENCES SECOND PRACTICE PRACTICAL EXAM Dr. G.R. Leichnetz
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
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
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
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
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
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
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 T6 D. Ipsilateral dorsal root ganglia above T6 E.Contralateral dorsal root ganglia above T6
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 T6 D. Ipsilateral dorsal root ganglia above T6 E.Contralateral dorsal root ganglia above T6
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
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
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
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
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
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
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
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
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
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
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
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
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
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
12. What functional component is associated with this nucleus? A. GSA B. GSE C. GVA D. SVA E. GVE
12. What functional component is associated with this nucleus? A. GSA B. GSE C. GVA D. SVA E. GVE
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
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
14. What sensory modality is associated with these two nuclei? A. Vestibular sensation B. Audition (hearing) C. SSA D. SVA E. Vision
14. What sensory modality is associated with these two nuclei? A. Vestibular sensation B. Audition (hearing) C. SSA D. SVA E. Vision
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
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
16. What functional component is associated with this nucleus? A. Somatomotor B. GSE C. Branchiomotor D. GVE E. SVE
16. What functional component is associated with this nucleus? A. Somatomotor B. GSE C. Branchiomotor D. GVE E. SVE
17. Identify this sensory tract. Fasciculus cuneatus B. Medial lemniscus C. Lateral lemniscus D. Inferior cerebellar peduncle E. Spinal lemniscus
17. Identify this sensory tract. Fasciculus cuneatus B. Medial lemniscus C. Lateral lemniscus D. Inferior cerebellar peduncle E. Spinal lemniscus
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
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
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
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
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
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
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
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
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
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
23. What sensory modality is associated with this nucleus? A. SSA B. Audition C. Vision D. GSA E. Vestibular sensation
23. What sensory modality is associated with this nucleus? A. SSA B. Audition C. Vision D. GSA E. Vestibular sensation
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
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
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)
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
35. What functional component is associated with this tiny structure? A. Olfaction B. GVA C. SVA D. Vision E. SVE
35. What functional component is associated with this tiny structure? A. Olfaction B. GVA C. SVA D. Vision E. SVE