the human body how it works set
from the skin that covers us to the heart that pumps the blood the human body is a complex machine whose parts must work together to keep us healthy and alive . each title in the new the human body how it works set investigates a different system or process of the human body from organ systems to cells . written by experts in human anatomy and accompanied by full color photographs and illustrations and charts and diagrams these new titles thoroughly examine each systems role in keeping the human body moving .