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.
Your biceps and triceps are examples of agonist and antagonist muscles. An agonist muscle is the primary mover. The primary mover is often responsible for initiating the major movement by a muscle shortening contraction. The antagonist muscle is a secondary mover.aily Movement. Muscles close in proximity, such as the biceps and triceps, often work in groups to create functional movement. Functional movement is motion that contributes to your ability to complete the tasks and activities that form your daily life.