Description (Edit): The human brain is the center of the human nervous system and is the most complex organ in any creature on earth. It has the same general structure as the brains of other mammals, but is over five times as large as the "average brain" of a mammal with the same body size. Most of the expansion comes from the cerebral cortex, a convoluted layer of neural tissue that covers the surface of the forebrain. Especially expanded are the frontal lobes, which are involved in executive functions such as self-control, planning, reasoning, and abstract thought. The portion of the brain devoted to vision is also greatly enlarged in humans.
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Description (Edit): The human brain is the center of the human nervous system and is the most complex organ in any creature on earth. It has the same general structure as the brains of other mammals, but is over five times as large as the "average brain" of a mammal with the same body size. Most of the expansion comes from the cerebral cortex, a convoluted layer of neural tissue that covers the surface of the forebrain. Especially expanded are the frontal lobes, which are involved in executive functions such as self-control, planning, reasoning, and abstract thought. The portion of the brain devoted to vision is also greatly enlarged in humans.
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