Muscles and Muscle Tissue

Edit Answers
12345678910111213141516171819202122232425262728293031323334
Across
  1. 4. narrow plate-shaped regions that separate neighboring sarcomeres
  2. 6. a protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin
  3. 7. the filaments of myofibrils, constructed from proteins, principally myosin or actin
  4. 9. the cytoplasm of a myocyte (muscle fiber)
  5. 11. this and the protein, actin, make up the contractile units of a muscle
  6. 15. generate force without changing the length of the muscle
  7. 16. a muscle that opposes the action of another
  8. 17. the shortening and thickening of a functioning muscle
  9. 18. the decline in ability of a muscle to generate force
  10. 19. the cell membrane of a striated muscle fiber cell
  11. 20. layer of areolar connective tissue that ensheaths each individual myocyte (muscle fiber, or muscle cell)
  12. 24. the fibrous tissue envelope that surrounds skeletal muscle
  13. 26. Tubule a deep invagination of the sarcolemma
  14. 28. A contracting muscle that is resisted or counteracted by an antagonistic muscle
  15. 30. an iron- and oxygen-binding protein found in the muscle tissue of vertebrates
  16. 31. caused by minor muscle contractions in the area, or uncontrollable twitching of a muscle group that is served by a single motor nerve fiber
  17. 32. a protein of muscle that forms a complex with troponin regulating the interaction of actin and myosin in muscular contraction
  18. 34. the applied force, or effort, is used to move a resistance
Down
  1. 1. this and the protein, myosin, make up the contractile units of a muscle
  2. 2. a narrow and less dense zone of myosin filaments bisecting the A band in striated muscle
  3. 3. muscle whose action is normally controlled by an individual's will
  4. 5. one of the cross striations in striated muscle that contain actin filaments and it appears light
  5. 8. generate force by changing the length of the muscle
  6. 10. the sheath of fibrous connective tissue surrounding the primary bundles of muscle fibers
  7. 12. the basic unit of striated muscle tissue
  8. 13. the point or mode of attachment of a skeletal muscle to the bone or other body part that it moves
  9. 14. A muscle cell
  10. 21. the attachment site that doesn't move during contraction
  11. 22. the continuous and passive partial contraction of the muscles
  12. 23. A very large fibrous protein that connects thick myosin filaments to Z discs in the sarcomere
  13. 25. made up of a motor neuron and the skeletal muscle fibers innervated by that motor neuron's axonal terminals
  14. 27. a bundle of skeletal muscle fibers surrounded by perimysium
  15. 29. one of the cross striations in striated muscle that contain myosin filaments and appear dark
  16. 33. the thin, dark line in the center of the H band of a sarcomere