File:Human brainstem anterior view 2 description.JPG

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Human_brainstem_anterior_view_2_description.JPG(346 × 487 pixels, file size: 35 KB, MIME type: image/jpeg)

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Human brainstem anterior view

  1. Gyrus rectus
  2. Bulbus olfactorii
  3. Tractus olfactorii
  4. Trigonum olfactorium
  5. Substantia perforata anterior
  6. Gyri orbitales
  7. Gyrus parahippocampalis
  8. Tractus opticus
  9. Chiasma opticum
  10. Nervus opticus
  11. Infundibulum hypophysialis
  12. Corpora mammillaria
  13. Substantia perforata posterior
  14. Fossa interpeduncularis
  15. Pedunculus cerebri
  16. Pons
  17. Sulcus basilaris
  18. Pedunculus cerebelli
  19. Sulcus bulbopontinus
  20. Oliva
  21. Pyramis medullae oblongatae
  22. Medulla oblongata, Fissura mediana anterior

A: Thalamus, B: Mesencephalon, C: Pons, D: Medulla oblongata

The Medulla, Pons & Midbrain are delineated here on the anterior surface of the brain.

In the Midbrain the massive right and left Cerebral Peduncles are seen. The two peduncles are separated by the Interpeduncular Fossa. Posteromedial central arteries enter the brain through the holes in the Posterior Perforated Substance located in the floor of the fossa. Cranial nerve III also enters the midbrain through this fossa.

Another important fact to note is that the pituitary gland was removed before this photo was taken. The infundibulum connects between the thalamus and pituitary.

(font: arial black, size: 10)

Source (Internet Archive of file description page)
Author John A Beal, PhD Dep't. of Cellular Biology & Anatomy, Louisiana State University Health Sciences Center Shreveport
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current22:21, 23 June 2006Thumbnail for version as of 22:21, 23 June 2006346 × 487 (35 KB)Patho (talk | contribs)
22:18, 23 June 2006Thumbnail for version as of 22:18, 23 June 2006346 × 487 (34 KB)Patho (talk | contribs){{Information| |Description='''Human brainstem anterior view''' # Gyrus rectus # Bulbus olfactorii # Tractus olfactorii # Trigonum olfactorium # Substantia perforata anterior # Gyri orbitales # Gyrus parahippocampalis # Tractus opticus # Chiasma opticum
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