🫁 The symbol "🫁" represents a pair of lungs, which are vital organs responsible for the exchange of oxygen and carbon dioxide in the body. The pleurae, on the other hand, are thin membranes that surround and protect the lungs. They consist of two layers: the visceral pleura, which is attached to the surface of the lungs, and the parietal pleura, which lines the inner surface of the chest cavity. Together, the pleurae create a fluid-filled space called the pleural cavity, which allows the lungs to move smoothly during breathing while providing support and protection.