Assemble the human heart at 600% magnification Each piece is custom cut, making for a unique puzzle to put together. Featuring accurate medical science and human anatomy, this puzzle helps highlight the complexities of our bodies and what makes us up. In this volume, you ll assemble an accurate cross-cut section of the heart that gives you a detailed interior view from the brachiocephalic artery to descending aorta. Focusing on the powerhouse of our cardiovascular system, this puzzle shows what it takes to pump 2,000 gallons of blood daily throughout our bodies. See the atria and ventricles that contract and relax to circulate oxygen and other nutrients. Follow the pulmonary vessels that transport carbon dioxide and other waste products to be replenished or discarded. Note the pericardium that protects and preserves our heart. Material:Cardboard, Die-Cut to Highlight Real Anatomy Pieces: 597 Set 1 of 5 in the Dr. Livingston Series Illustrated by Mesa Schumacher, a Certified Medical Illustrator from Johns Hopkins University. Explore the human body with this detailed anatomy jigsaw puzzlePerfect for educational purposes and puzzle enthusiastsLearn about anatomy while enjoying a fun and engaging activity