Which structure connects the left and right hemispheres of the brain?

Which structure connects the left and right hemispheres of the brain?

• A. Corpus Callosum
• B. Hippocampus
• C. Medulla Oblongata
• D. Cerebellum

Answer: (A)

Interhemispheric communication is facilitated by a large bundle of nerve fibers that bridges the two cerebral hemispheres. This structure runs beneath the cortex along the long fissure and serves as the main link for passing information between the left and right sides, supporting integrated thinking, perception, and coordinated movement. Its role is essential for the two hemispheres to work together; when it’s disrupted, the brain’s two halves can’t easily share information, which is why severing it in split-brain cases disrupts interhemispheric transfer. The hippocampus, by contrast, is involved in forming new memories and spatial navigation. The medulla oblongata is part of the brainstem that controls automatic functions like breathing and heart rate. The cerebellum sits at the back of the brain and helps with balance and precise movements.

Interhemispheric communication is facilitated by a large bundle of nerve fibers that bridges the two cerebral hemispheres. This structure runs beneath the cortex along the long fissure and serves as the main link for passing information between the left and right sides, supporting integrated thinking, perception, and coordinated movement. Its role is essential for the two hemispheres to work together; when it’s disrupted, the brain’s two halves can’t easily share information, which is why severing it in split-brain cases disrupts interhemispheric transfer.

The hippocampus, by contrast, is involved in forming new memories and spatial navigation. The medulla oblongata is part of the brainstem that controls automatic functions like breathing and heart rate. The cerebellum sits at the back of the brain and helps with balance and precise movements.