What are the three types of muscles and how they work?
Striated - Voluntary / Cardiac - Involuntary / Smooth - Involuntary
Everyone has the same muscles. By "build" you may be thinking of body types. The three ideal types are ectomorph, mesomorph, and endomorph. Everyone is actually a combination of all three of these types. No one type has more muscles than any other type. However, of the three types, the mesomorph may appear the most muscular.