Question

multiple-choice question
the cerebrum is divided into the left hemisphere and the right hemisphere. what structure connects these two halves?
○ the parietal lobes
○ the corpus callosum
○ the cerebral cortex

Explanation:

To solve this, we analyze each option:

• The parietal lobes are parts of the cerebral cortex (in the cerebrum) involved in sensory processing, not connecting the hemispheres.
• The corpus callosum is a thick band of nerve fibers that connects the left and right cerebral hemispheres, allowing communication between them.
• The cerebral cortex is the outer layer of the cerebrum, involved in higher - order functions, not the structure connecting the two hemispheres.

Answer:

B. the corpus callosum (assuming the options are labeled as A. the parietal lobes, B. the corpus callosum, C. the cerebral cortex)