Corpus callosum

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Basics

  • the major bundle of commissural fibres
  • In a horizontal section, it can be identified as a discreet bundle occupying the mid-sagittal region between the two cerebral hemispheres
  • In a coronal section, this bundle occupies the mid-sagittal region between the longitudinal fissure and the lateral ventricles
  • The components of the corpus callosum, as observed in the sagittal section, are: rostrum, genu, body, and splenium
  • Relatively more fibres decussate in the frontal and occipital regions than between the parietal and temporal regions of the corpus callosum
    • therefore, the genu and the splenium are larger in surface area than the body