The cerebral hemisphere are separated from olfactory lobes by rhinal fissure. The median fissure divides the cerebrum into a right and a left cerebral hemisphere. ... Two cerebral hemispheres are interconnected by thick band of transverse nerve fibres of white matter called corpus callosum.

The corpus callosum is a structure in the brain that connects the two cerebral hemispheres. It is the largest white matter structure in the brain and plays a crucial role in facilitating communication between the two hemispheres.

- The corpus callosum allows for the sharing of information and coordination of activities between the left and right cerebral hemispheres. It enables the hemispheres to work together and integrate information from different sensory modalities.

- The cerebral hemispheres are responsible for different functions. The left hemisphere is generally associated with language, logic, and analytical thinking, while the right hemisphere is associated with creativity, spatial awareness, and emotions. The corpus callosum allows for the transfer of information and integration of these functions.

- Without the corpus callosum, the two hemispheres would function independently and communication between them would be limited. For example, if the corpus callosum is damaged or surgically severed (a procedure known as a corpus callosotomy), individuals may experience a condition known as split-brain syndrome, where the two hemispheres cannot communicate effectively.

- The corpus callosum also plays a role in motor coordination. It allows for the transfer of motor commands from one hemisphere to the other, ensuring smooth and coordinated movements.

- In addition to connecting the cerebral hemispheres, the corpus callosum also connects other brain structures. It has connections with the thalamus, which is involved in sensory processing, and the hippocampus, which is involved in memory formation.

In conclusion, the corpus callosum is a crucial structure in the brain that connects the two cerebral hemispheres. It enables communication, coordination, and integration of functions between the hemispheres, allowing for efficient brain function.