Muscular System Crossword

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Across
  1. 2. bending; the movement that decreases the angle between bones
  2. 5. the product of anaerobic metabolism, especially in muscle
  3. 9. exercise using oxygen
  4. 10. aka tetanic contraction; when the muscle is stimulated so rapidly that there is no evidence of relaxation and the contractions are completely smooth and sustained
  5. 11. chains of tiny contractile units that make up myofibrils
  6. 12. when someone exercises a muscle strenuously for a long time
  7. 13. aka myosin filaments
  8. 15. attach muscle to bone
  9. 16. the state of continuous partial contractions
  10. 18. to move toward the midline of the body
  11. 19. one of the principal contractile proteins found in muscle
Down
  1. 1. the inward rotation of the forearm causing the radius to cross diagonally over the ulna
  2. 3. muscles acting to immobilize a joint or bone; fixes the origin of a muscle so that muscle action can be exerted at the insertion
  3. 4. aka actin filaments
  4. 6. a contractile protein of muscle
  5. 7. a motor neuron and all of the muscle cells it supplies
  6. 8. single, brief, jerky contractions
  7. 14. to move away from the midline of the body
  8. 17. attachment of a muscle that remains relatively fixed during muscular contraction
  9. 18. exercise without oxygen