A sulcus found between the superiorly situated cingulate gyrus and the inferiorly located corpus callosum is known as the sulcus of corpus callosum.
The corpus callosum, which is the largest pathway of fibers in the brain, is a transverse commissure that connects the left and right hemispheres as well as the roofs of the lateral ventricles. The commissural fibers of the corpus callosum allow for communication between the two cerebral hemispheres to occur.
This c-shaped structure is visualized when we take a midsagittal section of the brain. Dissecting the brain in this way, allows for anatomists, clinicians or pathologists to have a clear concise picture of the size, position and parts of this structure.
The corpus callosum can be divided into four parts: the rostrum which is continuous with the lamina terminalis, the genu which is the anterior part of the corpus callosum, situated medial to the frontal lobes. The commissural fibers of the forceps minor, which allow for communication between the medial and lateral parts of the frontal lobes of the two hemisphere, pass through the genu. The body and the splenium, which is the most posterior portion of the corpus callosum, are the third and fourth part of the corpus callosum.
The cingulate gyri of the left and right hemispheres are located immediately superior to the genu of corpus callosum and they extend anteroposteriorly along the corpus callosum.
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