The Structure and Function of the Muscular System

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1. What is the definition of a prime mover?

  • The muscle or group of muscles that contract to create movement.
  • The muscle or group of muscles that relax to allow movement to take place.
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2. An isometric contraction occurs in which sporting example?

  • long jump
  • bicep curl
  • Ski sit
  • swimming

3. When doing the upwards motion of a bicep curl, what is the name given to the triceps when they relax?

  • antagonist
  • prime mover

4. What is an isotonic concentric contraction?

  • the muscle doesn't contract
  • the muscle contracts and shortens
  • the muscle contracts and lenthens
  • the muscle contracts and stays the same

5. What muscle is located at the shoulder?

  • rotator cuffs
  • hip flexors
  • abdominals
  • trapezius
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