👉 The unable fluid, also known as pleural fluid, is a clear or colorless liquid that fills the space between the lungs and the chest wall, specifically within the pleural cavity. This fluid plays a crucial role in reducing friction between the lungs and the chest wall during breathing, allowing for smooth and efficient lung expansion and contraction. It also helps maintain the negative pressure within the pleural cavity, which is essential for keeping the lungs inflated. The balance of this fluid is vital; too much or too little can lead to conditions like pleural effusion, where excess fluid accumulates, potentially impairing respiratory function.
