What is the point of attachment at the movable end of a muscle called?

The point of attachment at the movable end of a muscle is called the insertion. This term is used in anatomy to specifically identify where a muscle attaches to the bone that it moves during contraction. When a muscle fibers contract, it pulls on the insertion point to create movement at the joint; this is distinct from the origin, which is the fixed attachment site that typically lies on the bone that remains stationary during muscle action. Understanding these terms is crucial for analyzing muscular movements and the mechanics of the skeletal system. Knowing that the insertion is where the action occurs helps in comprehending how different muscles contribute to physical activities, rehabilitation, and exercise.