👉 Pleurobranchia, commonly known as pleural fluid, is a fluid that collects within the lung cavities and surrounds the air sacs. It acts like a filter to remove harmful substances such as dust and bacteria from the lungs, helping to maintain a healthy respiratory system. Pleurong's function in the body is crucial for its role in breathing. When there's pleural fluid in the lungs, it helps to keep the air sacs (pleura) filled with oxygenated
