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Bassett Collection of Stereoscopic Images of Human Anatomy

Exploration of the brain from the medial aspect

Lateral ventricle opened further; cingulum exposed

Image #16-4

KEYWORDS: Brain, Cerebellum, Diencephalon, Pons, Telencephalon, Vasculature.

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Exploration of the brain from the medial aspect
Lateral ventricle opened further; cingulum exposed
The body of the fornix has been cut away to expose the upper surface of the thalamus and the choroid plexus in the lateral ventricle. The continuity of choroid plexus from lateral ventricle to third ventricle through the foramen of Monro is now clearly visible. The cingulum has been exposed throughout much of its course by removal of the cortex of the gyrus cinguli. Its passage into the paraolfactory area is demonstrated. The anterior cerebral artery has been divided and its distal portion retracted upward. The pons has been to dissected to demonstrate the course within it of fibers (26) from the cerebral peduncle and to show the position of the brachium conjunctivum (24).
  1. Cingulate sulcus
  2. Pericallosal artery (retracted upward)
  3. Cingulate gyrus
  4. Cingulum
  5. Corpus callosum (trunk)
  6. Choroid plexus lateral ventricle
  7. Head of caudate nucleus
  8. Stria terminalis
  9. Genu corpus callosum
  10. Subcortical fibers of parolfactory area
  11. Anterior commissure (cut across) and tectal part of column of fornix
  12. Anterior cerebral artery (divided)
  13. Optic chiasm
  14. Temporal pole
  15. Anterior tubercle of thalamus
  16. Fornix (crus) (cut across)
  17. Corpus callosum (splenium)
  18. Internal cerebral vein
  19. Mamillothalamic tract
  20. Posterior cerebral artery
  21. Quadrigeminal plate
  22. Cerebellum
  23. Fasciculus retroflexus
  24. Decussation brachium conjuctivum and brachium conjunctivum (superior cerebellar peduncle)
  25. Oculomotor nerve (III)
  26. Longitudinal fasciculus (pyramidal of pons)
  27. Basilar artery