👉 The synovial fluid, often referred to as the "caps fluid," is a viscous, clear liquid found within the cavities of synovial joints. It plays a crucial role in joint health by reducing friction between the articular cartilage surfaces during movement, thereby facilitating smooth and pain-free motion. This fluid also serves as a nutrient supply for the cartilage, helping to maintain its integrity and resilience. Additionally, synovial fluid contains lubricating proteins and antibodies that protect the joint from wear and tear, while also aiding in the removal of metabolic waste products. Produced by specialized cells called synovial fibroblasts and macrophages within the joint capsule, it ensures optimal joint function and longevity.
