The correct answer is b) insertion origin.
In anatomy, the attachment of a muscle’s tendon to the stationary bone is referred to as the origin. This is where the muscle starts and typically remains fixed during muscle contraction. On the other hand, the attachment of the muscle’s other tendon to the movable bone is known as the insertion. This is where the muscle exerts its force to create movement.
Understanding these terms is essential for studying muscle function and the mechanics of movement in the human body. Each muscle has a specific origin and insertion, which determines its action during contraction.