The cerebral hemispheres are connected by a large white fiber pathway called the _____.Group of answer choicescircular sulcuscorpus callosumfornixinsula

The cerebral hemispheres are connected by a large white fiber pathway called the corpus callosum.

Explanation:

The corpus callosum is a critical structure in the brain that facilitates communication between the left and right hemispheres. It consists of approximately 200 million axons, which are the long, slender projections of nerve cells that transmit signals. This structure is vital for integrating motor, sensory, and cognitive performances between the two hemispheres. When one hemisphere processes information, the corpus callosum allows for the transfer of that information to the other hemisphere, ensuring coordinated functioning. This is especially important for tasks that require the integration of spatial and verbal information or for activities that involve both hemispheres working together, such as in most everyday tasks.

In contrast, the other options listed are not responsible for connecting the cerebral hemispheres:

• Circular sulcus refers to a groove on the surface of the brain.
• Fornix is associated with the limbic system and memory.
• Insula is a region of the cerebral cortex involved in various functions, including emotion and perception.

Thus, the correct answer to your question is corpus callosum.