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Exploration of the brain from the medial aspect

Retrolenticular and sublenticular parts of internal capsule; striate arteries

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Image #18-4
Bassett Image
Diagram Image
Legend Image
Exploration of the brain from the medial aspect
Retrolenticular and sublenticular parts of internal capsule; striate arteries
The remainder of the lentiform nucleus has been taken out and the optic tract removed. The retrolenticular (12) and sublenticular (15) parts of the internal capsule are visible. The anterior perforated substance is cut away to reveal the course of the lateral striate arteries from the middle cerebral artery through the area of the lentiform nucleus. The medial inferior region of the frontal lobe is cut away.
  1. Radiation corpus callosum (mostly removed)
  2. Frontal part internal capsule
  3. External capsule
  4. Anterior commissure
  5. Lateral striate arteries passing through anterior perforated substance
  6. Middle cerebral artery (entering lateral fissure)
  7. Anterior cerebral artery (cut off)
  8. Superior longitudinal fasciculus
  9. Fibers entering superior occipitofrontal fasciculus
  10. Lateral ventricle
  11. Fornix (crus) (cut across)
  12. Retrolenticular part of internal capsule
  13. Stria terminalis
  14. Choroidal branch of posterior cerebral artery
  15. Sublenticular part of internal capsule (geniculocalcarine tract) (cut across)
  16. "Substantia innominata"
  17. Basal vein
  18. Choroidal artery (anterior) and uncus
  19. Posterior communicating artery