👉 Breathing fluid, also known as pleural fluid, is a thin, clear liquid that fills the space between the lungs and the chest wall, specifically the pleural cavity. This fluid plays a crucial role in maintaining the lungs' ability to expand and contract efficiently during respiration. It reduces friction between the lung tissue and the chest wall, allowing for smooth and effortless breathing movements. Additionally, the presence of this fluid helps keep the lungs inflated by providing a negative pressure that counteracts the outward pressure exerted by the diaphragm and intercostal muscles. When the fluid is present in adequate amounts, it ensures optimal lung function by facilitating gas exchange and protecting the delicate lung structures.
