While I always recommend giving fake lectures as a way of studying, that is perhaps never more important than for this muscular system chapter. You should be able to explain, out loud and without notes, everything that happens (and all the structures involved) from the time that a neuronal action potential is initiated to the time that the muscle shortens (and then relaxes). Practice this over the weekend, trying to get more and more detailed as you repeat the process. Do the same thing for the hierarchical structure of a muscle.