3D, AIRWAY, ANATOMICAL, ANATOMY, ANTERIOR, APEX, ARTWORK, BACKGROUND, BIOLOGY, BLACK, BODY, BREATHING, BRONCHI, BRONCHIAL, BRONCHIOLE, CARINA, CARTILAGE, CGI, DIGITALLY-GENERATED, DIMENSIONAL, GRAPHIC, HEALTHY, HUMAN, ILLUSTRATION, INTERNAL, KAULITZKI, LOBE, LUNGS, MALE, MAN, NO-ONE, NOBODY, NORMAL, ORGAN, RESPIRATION, SEBASTIAN, THREE, TRACHEA, TRANSPARENT, TREE,