Final answer:
True. Both synovial fluid and articular cartilage indeed function in shock absorption and lubrication of synovial joints, facilitating smooth and pain-free movement.
Step-by-step explanation:
The statement that both synovial fluid and articular cartilage function in shock absorption and the lubrication of a synovial joint is true. The synovial fluid is a thick, slimy substance which not only lubricates the joint to reduce friction, but it also serves other roles such as the nourishment of articular cartilage, which lacks its own blood supply. On the other hand, the articular cartilage acts as a smooth 'Teflon' coating over the surfaces of the bones, allowing for easy gliding during movement and providing a cushioning effect to absorb shock. Additional structures like meniscus and fat pads present in some synovial joints further aid in shock absorption. Together, these components ensure the smooth and pain-free articulation of synovial joints, which are functionally classified as diarthroses.