The postrior portion of the corpus callosum is called thesplenium; theanteriois called thegenu(or "knee"); between the two is the "body", of the corpus callosum.
genu : forceps minor : connect medial and lateral surfaces of the frontal lobes
rostrum : connecting the orbital surfaces of the frontal lobes
trunk (body) : pass through the corona radiata to the surfaces of the hemispheres
trunk and splenium : tapetum : extends along the lateral surface of the occipital …show more content…
The axons are |
|processes of pyramidal cells in the cerebral cortex, and they carry information, in the form of patterns of nerve |
|impulses, from cells of one hemisphere to cells in the contralateral hemisphere. The cell bodies of the axons in the |
|corpus callosum are found mostly in the second and third layers (the Outer Granular Layer and the Outer Pyramidal Layer, |
|respectively) of the cerebral cortex. Coordinated activity of the two hemispheres, and the unity of the brain itself, |
|depend on the adequate functioning of the axons in the corpus callosum. |
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|Connections between the right and left halves of the brain are called Commissural Connections. The corpus callosum is the |
|largest of the commissural connecting bundles. The axons in the corpus callosum are coated with myelin, a fatty substance …show more content…
This gives the corpus callosum a white appearance in |
|unstained sections, and in the cell-stained sections in this atlas. It forms part of the "white matter" of the brain. |
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|In the fiber-stained sections in this atlas, myelin is stained a blue-black color, so the corpus callosum appears black. |
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|About one-third of the information traveling to a cerebral hemisphere comes from the corpus callosum (that is to say, it |
|comes from the contralateral hemisphere). Correspondingly, about one-third of the information sent by the cortex of one |
|hemisphere is destined for the other hemisphere, through the corpus callosum. |
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|The lower parts of each hemisphere send some, most , or all of their commissural fibers through the Anterior Commissure