The property of contractility allows muscle tissue to pull on its attachment points and shorten with force.
It is the ability or quality of shrinking or tightening especially the capability of muscle fibers of shortening into a more consolidated state.
The power of muscle contraction is managed by numerous motor unit summation or recruitment.
While the actin is tensed, the filaments drive approximately 10 nm toward the M line. This action is anointed as the power stroke, as it is the phase at which force is created. As the actin is dragged toward the M line, the sarcomere condenses, and the muscle contracts.
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