What term is used to describe the attachment point of a muscle that moves during contraction?

The term used to describe the attachment point of a muscle that moves during contraction is the insertion. During muscle contraction, it is the insertion that approaches the origin, leading to movement at the joint. The insertion typically is located on the bone that moves when the muscle contracts, thus allowing for action and motion.

The origin, in contrast, is the fixed attachment point that does not move during contraction. This distinction is important for understanding how muscles function during movement. The stable point and prime mover terms relate to muscles but do not specifically indicate the location that moves during contraction. The stable point generally references areas that remain fixed while other parts of the body, like limbs, move. The prime mover refers to the muscle primarily responsible for a specific movement rather than its attachment points.