How muscles work

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Across
  1. 4. the muscle lengthens but is still under tension
  2. 7. muscles are connected to bones by
  3. 8. The build up of muscle through regular training is called .
  4. 9. Muscles working in opposition to each other are said to be working
  5. 11. name given to the muscle that relaxes in order to allow movement at a joint.
  6. 12. The end that moves is known as the
  7. 14. bringing two parts of a limb together - bending at the joint
Down
  1. 1. moving limbs away from the center of the body.
  2. 2. The origins of both the triceps and the biceps are at the top of the
  3. 3. moving two parts of a limb away from each other - straightening at the joint
  4. 5. the muscle shortens as it contracts.
  5. 6. Moving limbs towards the center of the body.
  6. 8. Muscles working to assist the prime mover are called
  7. 9. The wasting of muscle due to inactivity is called
  8. 10. the number of directions in which a muscle can create movement.
  9. 13. The type of muscle fiber used during long endurance events.