Write the function of voluntary muscle

In simpler words voluntary muscles are those muscles which are under our control for examples skeletal muscles, we can move them under our will, These are the muscles attached to the bones, and movement is caused through contraction of these muscles. Every movement a body makes is due to voluntary muscles contracting and relaxing. . On contrary, the involuntary muscles are those muscles which are not under our control, for example smooth muscles and cradiac muscles, we cant not control the muscles of heart, stomach, intestine etc