An anatomical model showing in detail the elements of the respiratory system in a 1: 1 scale. It also contains three thoracic and 3 lumbar vertebrae. The left lung is presented in cross-section to present bronchioles, pulmonary arteries and veins. The larynx's cross section shows its detailed structure. This model also shows the atria and ventricles of the heart, the main veins - the upper and lower, the aorta, pulmonary artery and coronary sinus.