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Which of these statements about joints and muscles is correct?Question response areaSelect one optionmuscles move joints by pushingmuscles move joints by pullingmuscles move joints by pushing and pullingmuscles are not involved in the movement of joints

Question

Which of these statements about joints and muscles is correct?Question response areaSelect one optionmuscles move joints by pushingmuscles move joints by pullingmuscles move joints by pushing and pullingmuscles are not involved in the movement of joints

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Solution

The correct statement is: "muscles move joints by pulling".

Here's why:

  1. Muscles are attached to bones by tendons. When a muscle contracts, it shortens, pulling on the bone it's attached to and causing it to move.

  2. Muscles can only pull. They cannot push. This is because when a muscle contracts, it pulls the two ends closer together. When it relaxes, it simply stops pulling and allows the bone to return to its original position.

  3. Therefore, muscles move joints by pulling, not by pushing.

  4. The statement "muscles are not involved in the movement of joints" is incorrect. Without muscles, our joints would not be able to move.

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