Most articulating bones are covered with thin layers of articular cartilage.
Articulating bones are connected via synovial joints. This means that the articulating extremity of each bone will be contained in a synovial capsule. This capsule will contain a fluid necessary for healthy and mobile articulations, commonly referred to as synovial fluid.
The opposing surfaces of bones that are connected in this way contain a thin layer of articular cartilage. This cartilage, along with the presence of synovial fluid, allows bones to move smoothly along one another and prevents harm to the actual bone tissue.
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