What does your esophagus do? How long is your small intestine? Which part of your body stores the goodness from food? Find the answers to these questions and much, much more in this picture-packed introduction to the human body.   Covering the key body systems, this series provides an essential introduction to how the human body works. Packed with photographs, artwork and clear, concise text, these titles make complex ideas easy to understand. This title features: labelled diagrams of key body parts; activities to aid understanding; fascinating facts, written and checked by experts; and, clear, modern design.