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.
do I band and H zone disappear during contraction? what happens to actin and myosin filaments? can anyone help me what changes? z discs, I and A band, h zone, sacromere.uring stimulation of the muscle cell, the motor neuron releases the neurotransmitter acetylcholine which travels across the neuromuscular junction (the synapse between the terminal bouton of the neuron and the muscle cell). Acetylcholine binds to a post-synaptic nicotinic acetylcholine receptor.