Exploration of the brain from its lateral aspect

Lateral ventricle, stria terminalis and internal capsule

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Image #15-2

Exploration of the brain from its lateral aspect

Lateral ventricle, stria terminalis and internal capsule

The principal divisions of the lateral ventricle are seen in this view in which all vestiges of the caudate nucleus have been taken away. The choroidal arteries seen passing through the choroidal fissure are branches of both the middle and posterior cerebral arteries.

1. Central sulcus (of Rolando)
2. Radiations of corpus callosum (cut across)
3. Ventricular surface of corpus callosum
4. Septum pellucidum forming medial wall of anterior horn lateral ventricle
5. Stria terminalis and frontal part internal capsule
6. Radiation of rostral lamina of corpus callosum (beneath site of head of caudate nucleus)
7. Anterior commissure
8. Uncinate fasciculus
9. Middle cerebral artery (cut across)
10. Temporal pole
11. Superior longitudinal fasciculus
12. Central part lateral ventricle
13. External medullary lamina (thalamus) (cut ends of fibers passing from thalamus into internal capsule)
14. Posterior horn lateral ventricle
15. Choroid plexus lateral ventricle (pointer on glomus chorioideum)
16. Retrolenticular part of internal capsule
17. Lateral geniculate body (only slightly exposed)
18. Sublenticular part of internal capsule
19. Optic tract and amygdaloid nucleus (partially removed)
20. Inferior horn of lateral ventricle
21. Medullary substance of temporal lobe