This document contains review material for a neuroanatomy lab covering the brainstem when viewed from the ventral and dorsal sides. It discusses the locations of various cranial nerves as well as structures such as the cerebral peduncles, pyramids, inferior olive, and cerebellar peduncles. It also contains review questions and answers about the relationships between these structures in the brainstem and hemispheres.

1. ANAT 321 REVIEW LABORATORY 1 & 2 NEUROANATOMY LAB

2. BRAINSTEM VENTRAL VIEW MIDBRAIN medulla pons midbrain

3. BRAINSTEM VENTRAL VIEW MIDBRAIN medulla pons midbrain Cerebral peduncle CN 3 CN 5 CN 6 Pyramid CN 9 CN 8 CN 7 CN 10 Inferior olive

4. BRAINSTEM VENTRAL VIEW MIDBRAIN medulla pons midbrain

5. BRAINSTEM VENTRAL VIEW MIDBRAIN medulla pons midbrain Cerebral peduncle CN 3 CN 5 CN 6 Pyramid CN 9 CN 8 CN 7 CN 10 Inferior olive

7. BRAINSTEM DORSAL VIEW w / out cerebellum

8. BRAINSTEM DORSAL VIEW w / out cerebellum Superior colliculus Middle cerebellar peduncle Inferior cerebellar peduncle Nucleus gracilis Nucleus cuneatus 4 th ventricle inferior colliculus

11. HEMISPHERES SAGITTAL VIEW

12. HEMISPHERES SAGITTAL VIEW thalamus septum pellicudum Anterior commissure Lamina terminalis mamillary body optic chiasm aqueduct 4th ventricle

13. HEMISPHERES SAGITTAL VIEW

14. HEMISPHERES SAGITTAL VIEW 3 rd ventricle fornix Corpus callosum hypothalamus infundibulum

16. BRAINSTEM DORSAL VIEW w / out cerebellum

17. BRAINSTEM DORSAL VIEW w / out cerebellum Superior colliculus Superior cerebellar peduncle Middle cerebellar peduncle Inferior cerebellar peduncle Nucleus gracilis Nucleus cuneatus 4 th ventricle Medial geniculate nucleus Pulvinar inferior colliculus brachium

18. BRAINSTEM DORSAL VIEW w / out cerebellum

19. BRAINSTEM DORSAL VIEW w / out cerebellum Superior colliculus Superior cerebellar peduncle Middle cerebellar peduncle Inferior cerebellar peduncle Nucleus cuneatus 4 th ventricle inferior colliculus brachium Pulvinar

21. TRANSECTED MIDBRAIN

22. TRANSECTED MIDBRAIN Cerebral aqueduct Substantia nigra Cerebral peduncles Red nucleus

23. QUIZ

24. A B C D

26. A B C D

28. A B C D E

30. A B C D E

32. A B C D