Exploration of the brain from the medial aspect

Caudate nucleus and stria terminalis; thalamic nuclei; medial lemniscus

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Image #16-6

Exploration of the brain from the medial aspect

Caudate nucleus and stria terminalis; thalamic nuclei; medial lemniscus

The corpus callosum has been cut back to expose the head and body of the caudate nucleus. The ependymal lining of the ventricle which covered this nucleus has been removed. Tissue in the region of the anterior commissure has been cut away to demonstrate the continuity of the stria terminalis with the basal olfactory region of the brain near the anterior perforated substance.

1. Cingulate gyrus
2. Cingulum
3. Corpus callosum (cut back from midline)
4. Caudate nucleus (exposed by removal of ependyma of ventricle)
5. Stria terminalis
6. Mamillothalamic tract
7. Anterior commissure
8. Anterior cerebral artery
9. Mamillary body
10. Optic chiasm
11. Internal carotid artery (cut across)
12. Choroid plexus lateral ventricle
13. Fornix (ems)
14. Cut surface of posterior part of thalamus
15. Region of ventrolateral nucleus of thalamus
16. Ventral posterior lateral nucleus of thalamus
17. Nucleus hypothalamicus
18. Medial lemniscus
19. Area previously occupied by red nucleus
20. Brachium conjunctivum (superior cerebellar peduncle) (cut across)
21. Oculomotor nerve (III)
22. Continuation of fibers of cerebral peduncle into basal part of pons