History-Dependent Features of Muscle Force Production: Crossword

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Across
  1. 3. The fact that rFD was abolished instantaneously following deactivation and reactivation of a muscle shows that an increase in _____ products seems unlikely to be responsible for rFD.
  2. 5. The increased isometric steady-state force following active muscle stretch is termed
  3. 6. Stress-induced inhibition of cross bridges is the most plausible mechanism for _____
  4. 9. Who first proposed the association between a parallel elastic element and rFE?
  5. 11. Following active shortening, strained actin and sticky titin result in the number of cross-bridges to _____ .
  6. 13. The first basic assumption of the cross-bridge theory is that muscle force is proportional to the number of _________?
  7. 15. What is the passive element that likely contributes to pFE and rFE?
Down
  1. 1. Instantaneous _____ measurements have been performed to quantify the number of attached cross bridges at steady-state following active stretch?
  2. 2. Titin spans along _____ of the sarcomere.
  3. 4. The active cross bridge and passive element contributions to rFE are likely what?
  4. 7. Which muscle was tested during the first study on rFD in humans?
  5. 8. Who developed the cross-bridge theory?
  6. 10. Which limb of the force-length relationship is the SLNU hypothesis about?
  7. 12. Titin was observed by many studies as an adjustable spring whose stiffness could be modulated by interactions with what?
  8. 14. Which theory of residual force enhancement is related to sarcomere length and is not supported experimentally?