Life-size model of the human respiratory system makes a great teaching and demonstration model, and is ideal for students, teachers, and medical professionals Comes with a 2-part larynx dissected along the sagittal plane, trachea with bronchial tree, 2-part lung dissected along the frontal plane, and 2-part heart depicting the subclavian artery and vein, vena cava, aorta, pulmonary artery, and esophagus to show how the lungs and respiratory system work Comes mounted on a baseboard Constructed from durable PVC