This exciting journey into the human body includes a die-cut model that will take you from head to toe and from a single cell to an entire system! What do you think is the most amazing machine in the universe? A superconductor? The modern computer? A rocket ship? Think again: It's the human body! Astonishingly intricate and complex, your body grows, heals itself, and performs a mind-boggling number of complex functions all at the same time! Discover the amazing human body, system by system and layer by layer, in this fascinating book. Inside Out: Human Body takes you on an incredible journey through the powerful muscular system, the 'bone zone,' the long and windy road of the digestive system, the blood-pumping circulatory system, the forty-seven-mile long nervous system, and beyond! A unique layered model of the human body serves as the centre point of each section, revealing key body parts and functions, while entertaining and informative text explains how the body works. Each section is fully illustrated with colourful diagrams and includes fun, interactive lessons for you to try yourself. You can learn how to take your own pulse, how to make your arms float, and even what the colour of your urine means! Sometimes the most incredible wonders are right under our noses.