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The Anatomy of the Corpus Callosum and Its Fibers in the Brain

Explore the intricate structures of the corpus callosum and its various parts such as rostrum, genu, body, and splenium, along with the different fibers connecting the hemispheres of the brain. Learn about commissural fibers (e.g., corpus callosum), associating fibers, and projecting fibers within the cerebral white matter. Discover the functions and connections of the internal capsule, external capsule, and extreme capsule in brain communication.

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The Anatomy of the Corpus Callosum and Its Fibers in the Brain

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  1. 3- Medullary center (cerebral white mater) • 1- Commisural fibers • 2- Association fibers • 3- Projecting fibers

  2. Commisural fibers • 1- Corpus callosum • 2- Fornix • 3- Anterior commissure • 4- Posterior commisure • 5- Habenula commissure

  3. Corpus callosum

  4. Corpus callosum 10cm

  5. Corpus callosum BODY GENU SPLENIUM ROSTRUM

  6. Different parts of corpus callosum • 1- ROSTRUM • 2- GENU • 3- BODY • 4- SPLENIUM

  7. Corpus callosum

  8. Fibers in different part of corpus callosum • 1- rostrum orbital gyrus • 2- genu frontal gyrus • 3- body parietal and temporal gyrus • 4- splenium occipital gyrus

  9. Forceps minor Radiation of corpus callosum Forceps major

  10. CONNECTION Tapetum

  11. Gray mater on the corpus callosum

  12. Deepest gyrus (intralimbic lobe) 1- paraterminal gyrus 2- indisium grisium (medial and lateral longituidinal stria) 3- gyrus fasciularis 4 - dentate gyrus 5- hippocampus

  13. medial and lateral longituidinal stria

  14. Fornix

  15. Alveus Fimbria

  16. Fornix • 1- alveus • 2- fimbria • 3- posterior column (crus of fornix) • 4- body • 5- anterior column • 6- pre and post commisural fibers • Hippocampal commisure

  17. Pre and post commisure fibers

  18. Associating fibers Short A. Long A.

  19. Long asssociation fibers • 1- sup. Longituidinal Fasciculus • 2- inf. Longituidinal Fasciculus • 3- uncinate Fasciculus • 4- cingulate Fasciculus

  20. Projecting fibers • 1- Internal capsule • 2- External capsule • 3- Extreme capsule

  21. Different parts of internal capsule • 1- Ant. Limb • 2- Genu • 3- Post. Limb • 4- Retro-lentiform • 5- Sub-lentiform

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