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Exploration of the brain from the medial aspect

Anterior limb of anterior commissure

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Image #17-2
Bassett Image
Diagram Image
Legend Image
Exploration of the brain from the medial aspect
Anterior limb of anterior commissure
The anterior limb (15) of the anterior commissure is seen in this view as it diverges from the posterior limb and approaches the olfactory trigone (5). The gyrus rectus (9) has been cut away to expose the olfactory tract (7) in its normal position within the olfactory sulcus. The cut end of the anterior commissure is in the midline.
  1. Internal capsule
  2. Broken ends of fibers from head of caudate nucleus into internal capsule
  3. Anterior commissure
  4. Cut surface of radiation of corpus callosum
  5. Olfactory trigone
  6. Anterior cerebral artery (divided)
  7. Olfactory tract
  8. Orbital branch of anterior cerebral artery
  9. Straight gyrus (cortex removed posteriorly)
  10. Inferior temporal gyrus
  11. Stria terminalis
  12. Internal capsule
  13. Inferior margin of internal capsule
  14. Ansa lenticularis (partially cut away)
  15. Anterior part of anterior commissure
  16. Lateral region of hypothalamus
  17. Optic tract
  18. Optic recess (ependymal surface still present)
  19. Optic chiasm
  20. Infundibulum
  21. Posterior communicating artery
  22. Optic nerve (II)
  23. Uncus (hippocampal gyrus)
  24. Internal carotid artery