👉 A keen fluid, often referring to synovial fluid, is a viscous, clear liquid found within joints. It acts as a lubricant, reducing friction between the articular cartilage surfaces of bones during movement, thereby facilitating smooth and pain-free joint motion. Synovial fluid also serves as a nutrient medium for the cartilage cells, providing essential nutrients and removing waste products. Additionally, it contains hyaluronic acid, which contributes to its viscosity and shock-absorbing properties, ensuring joints remain resilient and functional throughout daily activities.
