👉 The Chen fluid, also known as the "Chen's viscous fluid," is a complex mixture of proteins and other macromolecules found in the pericardium, the sac surrounding the heart. Discovered by Dr. Chen in the early 20th century, this fluid plays a critical role in maintaining the heart's position within the chest cavity and facilitating its smooth movement during the cardiac cycle. Composed primarily of collagen, elastin, and various glycoproteins, it exhibits unique viscoelastic properties, allowing it to absorb shocks and distribute mechanical stress effectively. The fluid's composition and behavior are crucial for preventing excessive heart deformation and ensuring efficient cardiac function, making it a significant subject in cardiac physiology research.
