Learning Resources Heart Model This miniature Heart Model measures 5 inches in height when assembled Realistically-detailed, miniature plastic human heart model Gain a deeper understanding of the heart and its components through hands-on manipulation Features superior and inferior venae cavae, right and left atria, tricuspid valve, right and left ventricles, pulmonary artery, mitral valve, aortic valve and aorta Includes 29-piece plastic model, display stand, and guide with facts and photo-illustrated assembly instructions