What is the Orgin of a muscle, and the moveable part is the insertion
The origin is the immovable (or slightly movable) attachment of a muscle.
origin
According to Anthony's Textbook of Anatomy and Physiology the origin is that point of attachment that does not move when the muscle contracts, and the point of attachment that does move when the muscle contracts is the insertion. Muscles and muscle groups that that directly perform specific movements are prime movers or agonists.
unshakable, fixed, unchangeable, unyielding, stuck, stationary, stable, motionless, immutable, constant, adamant, stubborn
Muscle Spindle
Fixed, Constant,The immovable
A tendon connects bone to muscle and a ligament connects bone to bone. The actual point of attachment where a muscle connects to a bone is called the process(n) of the bone. This is a bulge in the bone where muscle can attach to provide movement. Not all muscles will attach to bone via a bony process as described above, it may can sometimes by a fleshy attachment (e.g. sternocleidomastoid to clavicle). So broader terms are simple origin and insertion, origin being the attachment that tends to be fixed and insertion being the attachment that tends to move when the muscle is contracted.
Incapable of being moved; immovable; fixed; stable.
A muscle insertion is the end of a muscle attached to the free-moving bone of its joint. A muscle origin is the end of the muscle attached to the relatively fixed bone of the joint.
Fixed joints are called fixed joints because they are fixed and fused together. The are immovable. Two examples are the ilium (end of pelvic girdle) and the skull.
determined, fixed, firm, strong, immovable, inflexible, stubborn, unwavering, headstrong.
This joint that you are referring to is called a fixed joint, and cannot be moved or repositioned.
The cranial bones e.g. parietal, frontal, temporal and occipital. They are fused together by sutures which do not allow movement and are known as fixed or immovable joints