Briefly indicate the key components of synovial joints and their main functions.
What will be an ideal response?
(1) Cartilage covers and cushions ends of the bones, reduces friction as a joint moves, and serves as a shock absorber. (2) A joint capsule surrounds the joint and secretes synovial fluid that lubricates and nourishes the tissues inside the cavity. (3) Ligaments inside and around a joint connect the bones and provide stability. (4) Muscles connected to the tendons around the joint contract and move the bones.
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