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Question 54

At the end of a bone in a movable joint, which tissue offers flexible support and helps reduce friction?

  1. A ligament carrying nerve impulses
  2. A layer harder than tooth enamel
  3. Cartilage on the bone surfaceCorrect answer
  4. A muscle attachment that pumps joint fluid

Explanation

Cartilage covers many articulating bone surfaces, providing a smooth, somewhat flexible interface that reduces friction. A ligament can stabilize a joint, but it is not the low-friction covering specified in the situation.

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