Origin

Definition

In the context of anatomy and physiology, especially within the chapter on the muscular system, "origin" refers to the fixed attachment point of a muscle that remains stationary during muscle contraction. It is typically attached to a bone or other structure that does not move when the muscle contracts.

Related terms

Insertion: The point at which a muscle attaches to a moving bone or structure, opposite from its origin, and moves with muscle contraction.

Fascicle Arrangement: The way in which muscle fibers (fascicles) are organized within a muscle, affecting its strength and range of motion.

Lever Systems: A mechanism in musculoskeletal biology where bones act as levers, joints as fulcrums, and muscles provide the force for movement, all working together to create bodily motion