When stimulated to contract the sarcomeres shorten rightarro

When stimulated to contract, the sarcomeres shorten rightarrow myofibrils shorten rightarrow muscle fiber shortens rightarrow the muscle shortens. Complete the table by indicating the charges (if any), in two adjacent sarcomeres when they move from a relaxed state to a contracted state.

Solution

During muscle contraction, although the sarcomeres shorten, there is no change in length of A bands.The I band and the H zone become shortened and narrower as a result Z discs come closer to each other resulting in contraction of muscle.