👉 The runner fluid, also known as synovial fluid, is a viscous, clear liquid that lubricates and nourishes the joints within the human body. Produced by the synovial membrane lining the joints, it flows through tiny channels called synovial canals, providing essential cushioning and reducing friction between the bones during movement. This fluid also delivers nutrients to the cartilage and removes waste products, ensuring joint health and facilitating smooth, pain-free motion.
