As can be seen from the figure
if myosins from both sides apply equal force then how does muscle contract? And also how do actins resist tearing?
Is there any kind of coordination between different sarcomeres? How does they achieve it? I know that acetylcholine is released in response to action potential so does the release of acetylcholine controlled in each individual sarcomere?
Or simply there is an increase in the number of myosins as the distance of each sarcomere increases from the neuromuscular junction?