Muscle Physiology part 1

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Across
  1. 3. during high intensive short exercise, doesnt require O2
  2. 4. ____ muscle - slow and economical, saves ATP
  3. 6. _____ plate - where does the motor neuron meet and terminate on the skeletal muscle?
  4. 8. What is the region within the A band where the myosin is not covered by the actin called?
  5. 9. ____ filament (Myosin, A Band)
  6. 11. When the motor neurons meet the skeletal muscle at the motor endplate, an action potential releases a neurotransmitter
  7. 16. pull thin filament towards center of sarcomere
  8. 18. energy currency for muscle contractions
  9. 19. involuntary, Striated Muscle
  10. 25. _____ slips away from blocking position because of Ca2+, exposing the actin-binding site of myosin
  11. 26. regenerates ATP during exercise via creatine kinase enzyme to become creatine
  12. 27. _____ tubules - contain DHPR, AP propagating memrane passes through it
  13. 29. during prolonged, stamina exercise, requires O2
Down
  1. 1. involuntary, Unstriated Muscle
  2. 2. the dihydropyridine receptors will directly signal the adjacent receptors located on the sacroplasmic reticulum... what are these receptors called?
  3. 4. voluntary, Striated Muscle
  4. 5. period; time is required for onset of contraction and there are many processes involved before calcium is eventually released
  5. 6. pacemaker and slow-wave potentials, found in smooth and cardiac muscles
  6. 7. shortened due to power stroke
  7. 9. ____ filament (Actin, I Band)
  8. 10. the thick myosin filament in smooth muscles is ____ than that of skeletal muscles
  9. 12. attach to myosin, causing myosin and actin to detach
  10. 13. step 2 of PS
  11. 14. Ca2+ binds to ______
  12. 15. active reuptake of Ca to SR via _____
  13. 17. occur without ATP
  14. 19. _____-induced _____-release - Ca released from SR via RYR process, enabling m contractions
  15. 20. step 3 of PS
  16. 21. reticulum where are the calcium ions stored at rest?
  17. 22. muscles are specialised tissues that can develop _____ and shorten (i.e. contraction), thus providing movements
  18. 23. step 1 of PS
  19. 24. _____ cross-bridge cycling maintain tension, ensure smooth process of m contraction
  20. 28. Functional Unit of muscle
  21. 30. region of thick and thin filaments overlapping