The zone of overlap increases during the
A)latent period
B)contraction period
C)relaxation period
D)absolute refractory period
E)relative refractory period

Question

Quizplus · Accepted Answer

The zone of overlap refers to the area where the thin filaments of actin overlap with the thick filaments of myosin. This overlap occurs during the contraction period when the myosin heads bind to the actin and pull the thin filaments towards the center of the sarcomere, shortening the muscle fiber. Therefore, the zone of overlap increases during the contraction period.

The Zone of Overlap Increases During the