A prison gang, correctly defined, is any gang (where a gang is a group of three or more persons who recurrently commit crime, and where the crime is openly known to the group) that operates in prison.
The skeletal system can be thought of as the passive partner in producing movement; the muscular system can be thought of as the active partner. This chapter explains how muscles interact with bones to maintain posture and produce movement.he skeletal system can be thought of as the passive partner in producing movement; the muscular system can be thought of as the active partner. This chapter explains how muscles interact with bones to maintain posture and produce movement.
1 Movement: 2  Working with skeletal muscles, tendons, ligaments and joints, the bones form the moving machinery of human body. 3  The major role of bones in movement is that they act as levers, which make use of the forces generated by skeletal muscles in a beneficial way. So bones are responsible for the shape and form of human body. 2  Movement: 3  Working with skeletal muscles, tendons, ligaments and joints, the bones form the moving machinery of human body.