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Bassett Collection of Stereoscopic Images of Human Anatomy

Frontal section of brain

Olfactory structures visible in frontal section through anterior perforated substance

Image #32-1

KEYWORDS: Brain, Diencephalon, Telencephalon.

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Frontal section of brain
Olfactory structures visible in frontal section through anterior perforated substance
The plane of section is slightly oblique so that the right side is cut more posteriorly than the left. The view is from behind. The olfactory tracts can be traced posteriorly from the olfactory bulbs into the foreground of the view where the olfactory trigone is visible. The medial olfactory stria is more clearly seen on the left whereas the lateral olfactory stria can be traced on the right side across the anterior perforated substance into the limen insulae. The relations of the medial olfactory stria and the subcallosal gyrus (11) are shown. The anterior cerebral arteries are cut off from their origin from the middle cerebral arteries. The anterior communicating artery is visible and beyond this the two vessels course in the depths of the longitudinal fissure around the genu of the corpus callosum and reappear as cut ends in the upper part of the view.
  1. Longitudinal fissure
  2. Corona radiata
  3. Superior occipitofrontal fasciculus
  4. Head of caudate nucleus
  5. Anterior horn lateral ventricle
  6. Frontal part internal capsule
  7. Putamen
  8. External capsule
  9. Globus pallidus
  10. Inferior occipitofrontal fasciculus and uncinate fasciculus
  11. Subcallosal gyrus
  12. Medial and intermediate stria of olfactory trigone
  13. Middle cerebral artery (within lateral fissure)
  14. Temporal lobe
  15. Cingulate gyrus
  16. Corpus callosum
  17. Claustrum
  18. Septum pellucidum
  19. Stria terminalis
  20. External medullary lamina of lentiform nucleus
  21. Anterior commissure
  22. Lamina terminalis
  23. Lateral olfactory stria and limen insulae
  24. Anterior communicating artery
  25. Straight gyrus and olfactory tract