What Is the Largest Part of the Brain?

By Staff WriterLast Updated Mar 29, 2020 8:00:18 PM ET
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The cerebrum is the largest part of the human brain, making up about two-thirds of the brain's mass. It has two hemispheres, each of which has four lobes: frontal, parietal, temporal and occipital. The cerebrum and the diencephalon make up the forebrain.