Basically i was curious to the basics of how muscles really get bigger. Ive always heard that when we overload the muscles they sorta breakdown and when they heal they are a little bigger provided they have the proper nutrition (sorta like a scar) but im not really satisfied by that. Im more interested in how it really works...ie-the satelite cells satellite cells will fuse with one another or with the adjacent damaged muscle fiber, thereby increasing the number of myonuclei for fiber growth and repair. Proliferation of satellite cells is necessary in order to meet the needs of thousands of muscle cells all potentially requiring additional nuclei. Differentiation is necessary in order for the new nucleus to behave as a nucleus of muscle origin. The number of myonuclei directly determines the capacity of a muscle cell to manufacture proteins, including androgen receptors.

How does this really all work?