Illustration of the pleural cavity and breathing movements of the lungs during deep inspiration and expiration on the frontal section of the thorax.

Illustrace of borders of lungs (solid line) and pleura (dashed) on posterior and anterior view of thorax.

Illustrace of borders of lungs (solid line) and pleura (dashed) on view from left and right of thorax.

Patient with the pneumothorax on left side after chest trauma. The collapse of the left lung is marked by drawing.