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Chapter 7

The Muscular System 7.4

Origin The part of the muscle that attaches to a bone that does not move during the contraction.
Insertion The point where a muscle connects to a bone that moves during contraction.
Prime Mover/Agonist The muscle that does most of the work when completing a movement.
Synergists Muscles that assist the prime mover in a movement.
Antagonists Muscles that work and move in opposite directions to other muscles. All muscles are paired to have an antagonist.
Naming Muscles Muscles are named by size, shape, direction of fibers, location, attachment, number of attachments, and action.
Created by: Mr.Klein