This colorful replica includes the following removable parts: twopart larynx • trachea with bronchial tree • two-part heart • subclavian artery and vein • vena cava • aorta • pulmonary artery • esophagus • two-part lung (front halves removable) • diaphragm. 13½×16¼×4¾ inches (34×41×12 cm