It indicates an expandable section or menu, or sometimes previous / next navigation options. PNG is a popular graphic file format, perhaps second only to JPG today. It has a few advantages over ...
After a sufficient area of chest wall has been freed, a chest retractor is inserted. The pleura now can be moved from the mediastinum. Once the upper portion of the lung is completely detached from ...
A pulmonary bleb is a small collection of air between the lung and the outer surface of the lung (visceral pleura) usually found in the upper lobe of the lung. When a bleb ruptures the air escapes ...