human back

Back. The human back is the large posterior area of the body rising from the the top of the buttocks to the back of the neck. In anatomy, the back usually refers to the posterior side of the torso in humans and other primates. It is supported by the vertebral column. In stringed musical instruments, the back is the lower or inner surface of the resonant cavity; the opposite one, nearer the strings, is the belly. Back can also refer to the direction of tr

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