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Вопрос 62

A skeletal muscle shortens while attached to a bone. How does that contraction normally move the bone?

  1. The bone shortens on its own
  2. The muscle pulls the boneПравильный ответ
  3. The muscle pushes by swelling
  4. The muscle moves only nearby fluid

Объяснение

Contracting skeletal muscle develops tension that is transferred through its attachment, drawing the bone toward the muscle's other attachment. The bone does not shorten itself, and the muscle does not move it by expanding like an air bag.

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Вопрос 62: A skeletal muscle shortens while attached to a bone. How… · Human Body Systems · Questena