human muscle responsible for voluntary movement
1 MOVEMENTS OF BODY PARTS: Skeletal muscles are responsible for all voluntary movements of human body parts. 2  They provide the force by contracting actively at the expense of energy.3  In other words, muscles are motors of body where chemical energy of food is converted into mechanical work.unctions of Muscular System: Muscular system has the following important functions in human body; 1  MOVEMENTS OF BODY PARTS: Skeletal muscles are responsible for all voluntary movements of human body parts. 2  They provide the force by contracting actively at the expense of energy.