What happens during muscle contraction to the length of each myosin and action filament?
A. Z- lines get closer
B. A band becomes short
C. 1 band elongates
D. There is no change in sarcomere
What happens during muscle contraction to the length of each myosin and action filament?
A. Z- lines get closer
B. A band becomes short
C. 1 band elongates
D. There is no change in sarcomere