In: Anatomy and Physiology
QUESTION 21
Which of the following is not a correct statement about the sliding-filament model of muscle contraction?
| A. | 
 Actin crossbridges detach from the myosin filaments with energy from ATP hydrolysis  | 
|
| B. | 
 A major conformational change in relative size occurs within the sarcomere's zones and bands  | 
|
| C. | 
 A muscle shortens or lengthens because the thick and thin filaments slide past each other  | 
|
| D. | 
 The thick and thin filaments do not change length  |