plural snack bars. snack bar. noun. plural snack bars. Learner's definition of SNACK BAR. [count] : a public place where small meals and snacks are served usually at a counter. There's a snack bar at the pool where we can get nachos.
All muscles exert their force by pulling between at least two points of attachment. The movement that results from contraction is called the action of the muscle. Typically, one attachment remains stationary and is called the origin and the other attachment moves and is called the insertion. Almost all muscles cross at least one joint (moveable connection between two bones) and cause an action across that joint.
3. Identify the various arrangements of muscle fibers in a skeletal muscle, and relate the arrangements to the strength of contraction and range of motion. 4. Explain how the prime mover, antagonist, synergist, and fixator in a muscle group work together to produce movements.5.rigin and Insertion. i. Contractions of skeletal muscles produce movements by exerting a pulling force on tendons, which in turn pull on bones (or other structures, such as skin). ii. Most muscles extend across at least one joint and are attached to the articulating bones that form the joint. iii.