Revealed in fantastic computer-enhanced, three-dimensional pictures, the complex internal world of the human body is explored in DK Guide to the Human Body. In different sections of the book, the ingenious processes involved in moving, breathing, digesting food, producing babies, growing, and fighting off disease are explained in clear, lively text. The elaborate network of nerves that reach to the body's furthest extremities and carry data back to the brain is explored in fascinating detail. With page after page of groundbreaking imaging techniques in DK Guide to the Human Body, the layers of skin, flesh, bones, and other organs can be explored as they never have been before. Unravel 22 feet of small intestine and find out what happens to the good that travels through it at different stages of its journey. Be amazed by the power of the human eye and its ability to relay to the brain the difference between 10,000 different colors. Discover how the kidneys, at only 4 inches long, process the body's entire blood volume approximately 15 times each hour, 24 hours a day. Fantastic close-up photography shows the very cells that give our bodies substance and together make it run like a well-oiled and highly sophisticated machine. Front cover: A colored X-ray of the chest of an adult woman shows healthy lungs and heart. The two lungs -- in blue and orange -- can be seen through the ribs on each side of the central breastbone. The lungs supply the body with oxygen and carry away carbon dioxide. The heart -- in deep red -- occupies the space at lower center right. It pumps blood to and fro the lungs and throughout the body.