And this is simply because more motor units means we're using many more muscle fibers, many more muscle cells. And finally, let's move on to number three. So the thickness of the muscle cells also influences the force, the magnitude of the force that we're creating. And this is exactly what happens when we exercise. So let's take a look at the following muscle cell. So this individual single muscle cell, single muscle fiber consists of many of these myofibrils found inside the cytoplasm of that muscle cell.