Chapter 20

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Across
  1. 4. Muscle contractions produce heat.
  2. 6. Partial contraction of skeletal muscles.
  3. 8. refers to body position.
  4. 11. Broad,flat tendon.
  5. 12. Flesh.
  6. 13. Bundles of muscle fibers and lines parallel.
  7. 15. Skeletal muscles contract to pull on bones.
  8. 16. intracellular fluid within muscle fibers.
  9. 17. lay side by side,contains thousands of slender strands.
  10. 18. Together, work.
  11. 19. Basic units of muscle contraction.
Down
  1. 1. Feather.
  2. 2. cross 2 joints.
  3. 3. Muscle.
  4. 5. Cell membrane surrounding muscle fibers.
  5. 7. To struggle, against.
  6. 9. Cross only one joint.
  7. 10. Made up of 3 proteins: Actin, tropo, Myosin, Troponin.
  8. 14. To stretch.
  9. 15. Threadlike shape run the length of muscle.