And because there are more people doing it part time, where they donât need to make much of a profit in order to pay their bills, itâs going to be harder and harder for people in the industry who do rely upon photography to pay their bills to do so.
The contraction period, or contraction. time, is the time it takes the muscle to. reach its peak contraction after the latent. period. The relaxation period is the time. the muscle takes to return to resting. tension after reaching its peak. contraction. Muscles rely on two physiological. principles to bring about productive. motion: recruitment and summation.
During the period of contraction, _____ form and the muscle fiber shortens. Once myosin binds to actin, _____ changes shape, pulling the two filaments past one another. myosin As the two filaments (actin and myosin) slide past one another, _____ are released from the myosin. In order for myosin to release actin, it must bind _____.