By the end of the preschool period,the ________ part of the brain has grown significantly because it becomes considerably thicker with individual fibers that help coordinate brain functioning between the two hemispheres.

Question

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The corpus callosum is a thick band of nerve fibers that connects the two hemispheres of the brain. By the end of the preschool period, it has grown significantly, becoming thicker and developing more individual fibers, which help coordinate brain functioning between the two hemispheres. This increased connectivity between the hemispheres is an important development that allows for more integrated and coordinated processing of information.

By the End of the Preschool Period,the ________ Part of the Brain