Serial transverse sections of the brain stem

Diencephalon and telencephalon.

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Image #31-4

Serial transverse sections of the brain stem

Diencephalon and telencephalon.

The level of this section is 7 mm. above that of the last. The lentiform nucleus is sectioned through its mid-portion. Efferent fibers of the globus pallidus pass, as the ansa lenticularis, around the medial margin of the internal capsule.

1. Caudate nucleus (tail)
2. Posterior limb of internal capsule
3. Dorsal lateral nucleus of thalamus
4. Claustrum
5. External capsule
6. Putamen
7. External medullary lamina and external division of globus pallidus
8. Internal medullary lamina and internal division of globus pallidus
9. Posterior part of anterior commissure
10. Uncinate fasciculus
11. Lamina terminalis and optic recess
12. Lateral cerebral fissure
13. Orbital gyri
14. Cingulate gyrus and sulcus corpus callosum
15. Stria terminalis
16. Fornix (body)
17. Lateral nucleus of thalamus
18. Internal medullary lamina of thalamus
19. Medial nucleus of thalamus
20. Mamillothalamic fasciculus [Vicq d'Azyr]
21. Frontal part internal capsule
22. Ansa lenticularis
23. Tectal part of column of fornix and hypothalamus
24. Anterior perforated substance
25. Anterior communicating artery
26. Olfactory trigone
27. Straight gyrus