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The articular cartilage are spongy cushions that absorb compression placed on the joint and keep the bone ends from being crushed. When the 2 bones rub against each other, they'll be rubbing on the cartilage not on the bone. If the bones really rub against each other, then you will have joint problems like osteoarthritis (swollen joint, pain).

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14y ago
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Q: What is the purpose of cartilage at joint locations?
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