Muscular System

123456789101112131415
Across
  1. 2. Chemically attracted to actin
  2. 3. Its release into the sarcoplasm is triggered during the latent period
  3. 5. Holds tropomyosin in blocking position
  4. 7. Segment of myofibril between 2 successive Z lines
  5. 9. The first phase of twitch contraction
  6. 10. Covers the entire muscle as a whole
  7. 12. Myofilaments that are made up of actin, tropomyosin, and troponin
  8. 13. Covers actin molecules when the muscle is at rest
  9. 14. Point of attachment that does not move during muscle contraction
  10. 15. Binds fascicles together
Down
  1. 1. Type of contraction that occurs when muscle length is the same, but tension of the muscle increases
  2. 4. This phase begins when calcium binds to troponin
  3. 5. Allow electrical signals traveling along the sarcolemma to move deeper into the cell
  4. 6. Type of contraction that occurs when tension of a muscle is the same, but length of the muscle changes
  5. 8. Covers each skeletal muscle fiber
  6. 10. Allows skeletal muscle cells to respond to nerve signals
  7. 11. Made up of thick and thin myofilaments