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.
Due to spinal reflex activation of motor units in. response to stretch receptors in muscles and tendons. Contraction of Skeletal Muscle Fibers. The force exerted on an object by a contracting. muscle is called muscle tension, the opposing force or. weight of the object to be moved is called the load.