"Covering all the major body systems--integumentary (skin, hair, etc.), skeletal, muscular, nervous, sensory, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive, and, for good measure, this answer book adds chapters on growth and development and how science can help and augment the body. It follows the fascinating maze of organ systems and shows how much the body does routinely just to let you move, breathe, eat, and fight off disease."--