Which region connects the frontal lobes?

Which region connects the frontal lobes?

• A. Splenium
• B. Genu
• C. Body
• D. Rostrum

Answer: (B)

Interhemispheric communication between the frontal lobes is carried by fibers in the front part of the corpus callosum, the genu. This bend in the corpus callosum contains callosal fibers that connect the left and right frontal cortices, supporting coordinated frontal functions such as planning and executive control across both hemispheres. The posterior end—the splenium—connects the occipital lobes, while the body links more posterior areas like the parietal lobes. The rostrum is the anterior extension with ventral connections, but the direct bridge between the frontal lobes is through the genu.

Interhemispheric communication between the frontal lobes is carried by fibers in the front part of the corpus callosum, the genu. This bend in the corpus callosum contains callosal fibers that connect the left and right frontal cortices, supporting coordinated frontal functions such as planning and executive control across both hemispheres. The posterior end—the splenium—connects the occipital lobes, while the body links more posterior areas like the parietal lobes. The rostrum is the anterior extension with ventral connections, but the direct bridge between the frontal lobes is through the genu.