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Most of our bones that articulate at freely movable joints can be described as third class levers. What does this mean?

waelhammad
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2022-10-22
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Most of our bones that articulate at freely movable joints can be described as third class levers. What does this mean?

  1. they are “effi cient” levers
  2. the “effort arm” is longer than the “load arm”
  3. the muscle’s tendon is inserted between the load and the joint
  4. the muscle’s tendon is inserted close to the joint
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waelhammad
2022-10-22
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C: In third class levers, the muscle force (effort) is between the load and the fulcrum (the joint). Choice D can be satisfi ed by fi rst and third class levers.

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