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Exploration of the meninges and brain in situ

Olfactory bulb and tract in situ

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Image #2-5
Diagram Image
Legend Image
Exploration of the meninges and brain in situ
Olfactory bulb and tract in situ
The view is from above and in front. A cut has been made through the basal ganglia close to the attachment of the olfactory tract to the base of the brain, and the left hemisphere removed. The olfactory bulb and tract remain in position on the floor of the anterior cranial fossa. The most medial part of the lateral fissure is opened from above and its contained vessels (28) exposed. The temporal pole is still present.
  1. Caudate nucleus (cut across)
  2. Internal capsule (cut across)
  3. Fornix (column) (cut across)
  4. Interventricular foramen (of Monro)
  5. Globus pallidus
  6. Corpus callosum
  7. Pericallosal branch of anterior cerebral artery
  8. Medial olfactory stria
  9. Optic nerve (11)
  10. Cingulate gyrus
  11. Anterior cerebral artery left (cut off)
  12. Olfactory tract 29.
  13. Callosomarginal branch of anterior cerebral artery right
  14. Falx cerebri
  15. Olfactory bulb
  16. Superior sagittal sinus (opened)
  17. Choroid plexus lateral ventricle
  18. Inferior longitudinal fasciculus
  19. Insula
  20. External capsule
  21. Putamen
  22. Claustrum
  23. Medullary substance of insula
  24. "Substantia innominata" and uncus hippocampal gyrus
  25. Superior temporal gyrus (cut across)
  26. Uncinate fasciculus (cut across)
  27. Lateral olfactory stria
  28. Middle cerebral artery
  29. Middle cerebral vein
  30. Dura mater (note: cut ends of middle meningeal vessels near pointer)
  31. Temporalis muscle (cut across)
  32. Orbital part of frontal bone (covered with dura and arachnoid)