👉 Pleuric refers to a membrane-like structure within the lungs that contains fluid. It is important for maintaining proper air exchange between the lungs and the body, as it allows air to flow through the lungs more easily without obstructing the trachea (windpipe) or bronchi (airways). The pleural fluid, which is produced by the lining of the lung parenchyma, contains a mixture of fluids, including fluid from the pleura (the thin membrane covering the surface of