👉 The pink fluid, also known as serous fluid or pseudocapsular fluid, is a clear or slightly yellowish liquid that fills the spaces between the layers of the serous membranes, such as the visceral and parietal layers of the pleura (surrounding the lungs) or the peritoneum (surrounding the abdominal organs). This fluid serves as a lubricant, reducing friction between these layers during movement and helps protect the underlying tissues. It also plays a role in maintaining the integrity of the serous cavities, facilitating the exchange of gases and nutrients while acting as a barrier against pathogens. The presence of this fluid is crucial for normal respiratory and digestive functions, ensuring smooth and efficient operation of these vital organs.
