Final answer:
Cartilage serves multiple crucial functions beyond pain protection, including lubrication and shock absorption, and plays a role in bone development.
Explanation:
Cartilage plays an important role in addition to being a barrier to pain. It functions in lubrication, shock absorption, and the protection of articular cartilage. For example, in the development of bones, cartilage serves as a template that is gradually replaced by bone cells during a process called ossification.
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