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Wednesday, February 5, 2014

Human Brain

The human brain has the same general structure as the brains of another(prenominal) mammals, but is big than any other in copulation to consistency size. Large animals much(prenominal) as whales and elephants cave in larger brains in absolute terms, but when sumd use the encephalization quotient which compensates for body size, the human brain is al close to twice as large as the brain of the bottlenose dolphin, and three measure as large as the brain of a chimpanzee. more(prenominal) of the expansion comes from the part of the brain called the cerebral cerebral cortex, oddly the frontage lobes, which atomic number 18 associated with executive blend ins such as self-control, planning, reasoning, and rear thought. The portion of the cerebral cortex devoted to vision is withal greatly enlarged in humans. The human cerebral cortex is a abstruse floor of neural tissue that covers al approximately of the brain. This layer is folded in a way that increases the amo unt of draw near that screw fit into the volume available. The pattern of folds is similar crosswise individuals, although there be many small variations. The cortex is divide into quaternion lobes, called the frontal lobe, parietal lobe, temporal lobe, and occipital lobe. (Some compartmentalisation systems also include a limbic lobe and treat the parochial cortex as a lobe.) Within each lobe are numerous cortical areas, each associated with a particular function such as vision, motor control, language, etc. The left and even out sides of the cortex are broadly similar in shape, and most cortical areas are replicated on both sides. Some areas, though, translate healthful lateralization, particularly areas that are involved in language. In most people, the left cerebral cerebral hemisphere is dominant for language, with the right hemisphere compete only a minor role. There are other functions, such as spatiotemporal reasoning, for which the right hemisphere is unremarkabl y dominant. Despite being protected by the ! thick mug up of the skull, suspended in cerebrospinal fluid, and isolate from the bloodstream by the bloodbrain barrier, the...If you want to stick by a ripe essay, order it on our website: OrderCustomPaper.com

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