Which of these actions happens during contraction of skeletal muscle fibres

Question

Quizplus · Accepted Answer

During contraction of skeletal muscle fibers, thin filaments slide inward toward A band's centers as a result of cycles of cross-bridge binding and bending. This process is called the sliding filament theory, where actin (thin filament) and myosin (thick filament) slide past each other, overlapping to shorten the sarcomere length and, therefore, the muscle fiber. The contractile proteins also contract, but this action is a result of the sliding filament theory. Thick and thin filaments do not become tightly coiled, and I bands do not slide between A bands.

Which of These Actions Happens During Contraction of Skeletal Muscle