By the end of the preschool period, the __________, a bundle of nerve fibers that connect the two hemispheres of the brain, becomes considerably thicker.

Question

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By the end of the preschool years, some parts of the brain have undergone considerable growth, including the corpus callosum, which links the two hemispheres of the brain together. It becomes thicker and helps coordinate functioning between the hemispheres.

By the End of the Preschool Period, the __________, a Bundle