7 The Metencephalon

In this laboratory session, we will study the anatomy of the human metencephalon. The metencephalon is the embryonic part of the hindbrain that differentiates into the pons and the cerebellum. It contains a portion of the fourth ventricle and the trigeminal nerve (CN V), abducens nerve (CN VI), facial nerve (CN VII), and a portion of the vestibulocochlear nerve (CN VIII).

Below, you will be presented with a number of figures and asked to label or color certain structures in each figure.

7.1 A Series Of Coronal Sections Of A Human Brain

In Figure 4.5, label the following structures:

  1. The pons
Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.5: Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.6, label the following structures:

  1. The pons
Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.6: Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.7, label the following structures:

  1. The oculomotor nucleus
  2. The medial longitudinal fasciculus
  3. The parahippocampal gyrus
  4. The cerebellum
  5. The pons
  6. The pyramidal tract
Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.7: Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.8, label the following structures:

  1. The superior cerebellar peduncle
  2. The inferior olive
  3. The 4th ventricle
  4. The lateral ventricle
  5. The inferior colliculus
  6. The cerebellum
  7. The middle cerebellar peduncle
  8. The pontine reticular formation
Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.8: Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.9, label the following structures:

  1. The dentate gyrus
  2. The medial vestibular nucleus
  3. The nucleus of the solitary tract
  4. The solitary tract
  5. The lateral ventricle
  6. The 4th ventricle
  7. The inferior cerebellar peduncle
  8. The inferior olive
Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.9: Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.10, label the following structures:

  1. The lateral ventricle
  2. The vermis
  3. The cerebellum
  4. The inferior olive
Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.10: Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.11, label the following structures:

  1. The vermis
  2. The cerebellum
Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.11: Coronal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

7.2 A Series Of Sagittal Sections Of A Human Brain

In Figure 4.16, label the following structures:

  1. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.16: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.17, label the following structures:

  1. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.17: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.18, label the following structures:

  1. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.18: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.19, label the following structures:

  1. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.19: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.20, label the following structures:

  1. The middle cerebellar peduncle
  2. The cerebellum
(ref:s572)

Figure 4.20: (ref:s572)

In Figure 4.21, label the following structures:

  1. The middle cerebellar peduncle
  2. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.21: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.22, label the following structures:

  1. The middle cerebellar peduncle
  2. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.22: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.23, label the following structures:

  1. The middle cerebellar peduncle
  2. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.23: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.24, label the following structures:

  1. The pontine nuclei
  2. The middle cerebellar peduncle
  3. The cerebellum
  4. The inferior cerebellar peduncle
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.24: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.25, label the following structures:

  1. The pontine nuclei
  2. The inferior cerebellar peduncle
  3. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.25: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.26, label the following structures:

  1. The pontine nuclei
  2. The superior cerebellar peduncle
  3. The inferior cerebellar peduncle
  4. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.26: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.27, label the following structures:

  1. The pontine nuclei
  2. The inferior olive
  3. The cerebellar tonsil
  4. The superior cerebellar peduncle
  5. The inferior cerebellar peduncle
  6. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.27: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.28, label the following structures:

  1. The pontine nuclei
  2. The inferior olive
  3. The cerebellar tonsil
  4. The superior cerebellar peduncle
  5. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.28: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.29, label the following structures:

  1. The pontine nuclei
  2. The inferior olive
  3. The cerebellar tonsil
  4. The decussation of the superior cerebellar peduncle
  5. The cerebellum
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.29: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.30, label the following structures:

  1. The pontine nuclei
  2. The inferior olive
  3. The cerebellar tonsil
  4. The decussation of the superior cerebellar peduncle
  5. The cerebellum
  6. The gracile nucleus
  7. The cuneate fasciculus
  8. The 4th ventricle
Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.30: Sagittal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

7.3 A Series Of Horizontal Sections Of A Human Brain

In Figure 4.37, label the following structures:

  1. The medial longitudinal fissure
  2. The vermis of the cerebellum
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.37: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.38, label the following structures:

  1. The cerebellum
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.38: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.39, label the following structures:

  1. The cerebral aqueduct
  2. The cerebellum
  3. The vermis of the cerebellum
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.39: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.40, label the following structures:

  1. The cerebellum
  2. The vermis of the cerebellum
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.40: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.41, label the following structures:

  1. The cerebellum
  2. The vermis of the cerebellum
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.41: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.42, label the following structures:

  1. The locus coeruleus
  2. The cerebellum
  3. The vermis of the cerebellum
  4. The 4th ventricle
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.42: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.43, label the following structures:

  1. The central grey of the pons
  2. The locus coeruleus
  3. The cerebellum
  4. The vermis of the cerebellum
  5. The 4th ventricle
  6. The trigeminal nerve
  7. The superior cerebellar peduncle
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.43: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.44, label the following structures:

  1. The central grey of the pons
  2. The locus coeruleus
  3. The cerebellum
  4. The vermis of the cerebellum
  5. The medial lemniscus
  6. The 4th ventricle
  7. The trigeminal nerve
  8. The superior cerebellar peduncle
  9. The central tegmental tract
  10. The dentate nucleus
  11. The emboliform nucleus
  12. The fastigial nucleus
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.44: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.45, label the following structures:

  1. The central grey of the pons
  2. The locus coeruleus
  3. The cerebellum
  4. The vermis of the cerebellum
  5. The medial lemniscus
  6. The 4th ventricle
  7. The trigeminal nerve
  8. The superior cerebellar peduncle
  9. The emboliform nucleus
  10. The fastigial nucleus
  11. The medial lemniscus
  12. The entorhinal cortex
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.45: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.46, label the following structures:

  1. The solitary tract and nucleus
  2. The facial nucleus
  3. The facial nerve root
  4. The olivary nuclei
  5. The raphe nuclei
  6. The central grey of the pons
  7. The 3d ventricle
  8. The locus coeruleus
  9. The cerebellum
  10. The vermis of the cerebellum
  11. The 4th ventricle
  12. The trigeminal nerve
  13. The superior cerebellar peduncle
  14. The superior vestibular nucleus
  15. The spinal trigeminal nucleus
  16. The middle cerebellar peduncle
  17. The central tegmental tract
  18. The reticular formation
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.46: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.47, label the following structures:

  1. The solitary tract and nucleus
  2. The facial motor nucleus
  3. The corticospinal fibers
  4. The superior olivary nuclei
  5. The cerebellum
  6. The vermis of the cerebellum
  7. The 4th ventricle
  8. The trigeminal nerve
  9. The superior cerebellar peduncle
  10. The superior vestibular nucleus
  11. The spinal trigeminal nucleus
  12. The spinal trigeminal tract
  13. The middle cerebellar peduncle
  14. The central tegmental tract
  15. The reticular formation
  16. The middle cerebellar peduncle
  17. The cerebellar tonsil
  18. The medial longitudinal fasciculus
  19. The medial vestibular nucleus
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.47: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.48, label the following structures:

  1. The solitary tract and nucleus
  2. The corticospinal fibers
  3. The cerebellum
  4. The vermis of the cerebellum
  5. The 4th ventricle
  6. The inferior cerebellar peduncle
  7. The medial vestibular nucleus
  8. The spinal trigeminal nucleus
  9. The spinal trigeminal tract
  10. The inferior cerebellar peduncle
  11. The cerebellar tonsil
  12. The medial longitudinal fasciculus
  13. The ventral cochlear nucleus
  14. The dorsal cochlear nucleus
  15. The hypoglossal nucleus
  16. The inferior vestibular nucleus
  17. The pontine nuclei
  18. The inferior olive
  19. The medial lemniscus
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.48: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.49, label the following structures:

  1. The solitary tract and nucleus
  2. The corticospinal fibers
  3. The cerebellum
  4. The 4th ventricle
  5. The inferior cerebellar peduncle
  6. The inferior vestibular nucleus
  7. The spinal trigeminal tract
  8. The inferior cerebellar peduncle
  9. The cerebellar tonsil
  10. The medial longitudinal fasciculus
  11. The ventral cochlear nucleus
  12. The dorsal cochlear nucleus
  13. The hypoglossal nucleus
  14. The inferior vestibular nucleus
  15. The pontine nuclei
  16. The inferior olive
  17. The medial lemniscus
  18. The choroid plexus
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.49: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.50, label the following structures:

  1. The corticospinal fibers
  2. The cerebellum
  3. The 4th ventricle
  4. The inferior cerebellar peduncle
  5. The inferior vestibular nucleus
  6. The cerebellar tonsil
  7. The medial longitudinal fasciculus
  8. The ventral cochlear nucleus
  9. The hypoglossal nucleus
  10. The inferior vestibular nucleus
  11. The pontine nuclei
  12. The inferior olive
  13. The medial lemniscus
  14. The choroid plexus
  15. The dorsal cochlear nucleus
  16. The external cuneate nucleus
  17. The dorsal motor nucleus of the vagus
  18. The solitary nucleus
  19. The hypoglossal nucleus
  20. The spinal trigeminal nucleus
  21. The spinal trigeminal tract
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.50: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.51, label the following structures:

  1. The corticospinal fibers
  2. The cerebellum
  3. The 4th ventricle
  4. The inferior cerebellar peduncle
  5. The inferior vestibular nucleus
  6. The cerebellar tonsil
  7. The cuneate nucleus
  8. The external cuneate nucleus
  9. The vestibulocochlear nerve
  10. The medial longitudinal fasciculus
  11. The dorsal cochlear nucleus
  12. The hypoglossal nucleus
  13. The inferior vestibular nucleus
  14. The medial lemniscus
  15. The choroid plexus
  16. The dorsal cochlear nucleus
  17. The dorsal motor nucleus of the vagus
  18. The solitary nucleus
  19. The spinal trigeminal nucleus
  20. The spinal trigeminal tract
  21. The solitary tract
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.51: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.52, label the following structures:

  1. The corticospinal fibers
  2. The cerebellum
  3. The 4th ventricle
  4. The inferior cerebellar peduncle
  5. The inferior vestibular nucleus
  6. The cerebellar tonsil
  7. The external cuneate nucleus
  8. The medial longitudinal fasciculus
  9. The hypoglossal nucleus
  10. The decussatin of the medial lemniscus
  11. The dorsal motor nucleus of the vagus
  12. The solitary nucleus
  13. The spinal trigeminal nucleus
  14. The spinal trigeminal tract
  15. The solitary tract
  16. The lateral reticular nucleus
  17. The gracile nucleus
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.52: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.53, label the following structures:

  1. The corticospinal fibers
  2. The cerebellum
  3. The 4th ventricle
  4. The inferior cerebellar peduncle
  5. The inferior vestibular nucleus
  6. The cerebellar tonsil
  7. The external cuneate nucleus
  8. The medial longitudinal fasciculus
  9. The hypoglossal nucleus
  10. The decussatin of the medial lemniscus
  11. The dorsal motor nucleus of the vagus
  12. The solitary nucleus
  13. The spinal trigeminal nucleus
  14. The spinal trigeminal tract
  15. The solitary tract
  16. The lateral reticular nucleus
  17. The gracile nucleus
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.53: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.54, label the following structures:

  1. The corticospinal fibers
  2. The pyramids
  3. The accessory nucleus
  4. The cerebellum
  5. The 4th ventricle
  6. The inferior cerebellar peduncle
  7. The inferior vestibular nucleus
  8. The cerebellar tonsil
  9. The cuneate nucleus
  10. The medial longitudinal fasciculus
  11. The hypoglossal nucleus
  12. The decussatin of the medial lemniscus
  13. The solitary nucleus
  14. The spinal trigeminal nucleus
  15. The spinal trigeminal tract
  16. The solitary tract
  17. The lateral reticular nucleus
  18. The gracile nucleus
  19. The inferior cerebellar peduncle
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.54: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.55, label the following structures:

  1. The pyramids
  2. The pyramidal decussation
  3. The accessory nucleus
  4. The cerebellum
  5. The 4th ventricle
  6. The inferior cerebellar peduncle
  7. The inferior vestibular nucleus
  8. The cerebellar tonsil
  9. The cuneate nucleus
  10. The cuneate fasciculus
  11. The medial longitudinal fasciculus
  12. The spinal trigeminal nucleus
  13. The spinal trigeminal tract
  14. The solitary tract
  15. The lateral reticular nucleus
  16. The gracile nucleus
  17. The gracile fasciculus
  18. The medial motor nuclei
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.55: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 4.56, label the following structures:

  1. The pyramidal decussation
  2. The accessory nucleus
  3. The cerebellum
  4. The cerebellar tonsil
  5. The cuneate nucleus
  6. The cuneate fasciculus
  7. The spinal trigeminal nucleus
  8. The substantia gelatinosa
  9. The lateral reticular nucleus
  10. The gracile nucleus
  11. The gracile fasciculus
  12. The medial motor nuclei
  13. The central grey
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 4.56: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 7.1, label the following structures:

  1. The superior cerebellar peduncle
  2. The middle cerebellar peduncle
  3. The mesencephalic nucleus of cranial nerve V (trigeminal)
  4. The pontine nuclei
  5. The corticospinal fibers
  6. The medial longitudinal fasciculus
  7. The medial lemniscus
  8. The cerebellum
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 7.1: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 7.2, label the following structures:

  1. The inferior cerebellar peduncle
  2. The 4th ventricle
  3. The middle cerebellar peduncle
  4. The vestibular nuclei
  5. The facial colliculus
  6. The nucleus of cranial nerve VII (facial)
  7. The root of cranial nerve VII (facial)
  8. The nucleus of cranial verve VI (abducens)
  9. The nucleus solitarius
  10. The pontine nuclei
  11. The corticospinal fibers
  12. The medial longitudinal fasciculus
  13. The cerebellum
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 7.2: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 7.3, label the following structures:

  1. The vestibular nuclei
  2. The accessory cuneate nucleus
  3. The spinal trigeminal nucleus
  4. The inferior olive
  5. The 4th ventricle
  6. The nucleus ambiguus
  7. The cerebellum
  8. The reticular formation
  9. The pontine reticular formation
  10. The cerebellum
  11. The pontine nuclei
  12. The nucleus of cranial nerve XII (hypoglossus)
  13. The dorsal motor nucleus of cranial nerve X (vagus)
  14. The ventral cochlear nucleus
  15. The cranial nerve VIII (vestibulocochlear)
  16. The pyramid
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 7.3: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

In Figure 7.4, label the following structures:

  1. The cuneate nucleus
  2. The cuneate fasciculus
  3. The gracile fasciculus
  4. The gracile nucleus
  5. The pyramidal decussation
  6. The accessory nucleus
  7. The cerebellum
  8. The spinal nucleus of cranial nerve V (trigeminal)
Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.

Figure 7.4: Horizontal section from The Human Brain Atlas at the Michigan State University Brain Biodiveristy Bank which acknowledges their support from the National Science Foundation.