Which of the following is not an important function of bone?
Correct answer: B. Muscular contraction
- A. Regulation of ion concentration
- B. Muscular contraction
- C. Organ and nerve protection
- D. Regulation of pH through hydration
Explanation
Muscular contraction is not a direct function of bones. Muscular contraction is a function of the muscles themselves. Muscles are responsible for generating force and producing movement through contraction and relaxation. Bones, on the other hand, provide a rigid framework and structural support for the body. Muscles attach to bones via tendons, and when muscles contract, they pull on the bones, causing movement at the joints. The bones act as levers that amplify and direct the forces generated by the muscles to produce coordinated movement. So, while bones are involved in the process of movement through their interaction with muscles, the actual function of muscular contraction is performed by the muscles themselves
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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