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Muscular System vocab

Golden Rules all muscles cross at least one joint; bulk of the muscles lie proximal to the crossed joint; all muscles have at least 2 attachments:origins & insertions; all muscles can only pull (never push; during contraction, insertion moves toward the origins
Antagonist muscle that opposes a prime mover
Membrane skeletal muscle Muscle fiber: sarcolemma; fascicle: perimysium; muscle body: epimysium
Prime mover muscle responsible for a particular body movement (agonist)
Synergists muscles that assists the action of a prime mover
Origin end of a muscle that attaches to a relatively immovable part
Insertion end of muscle attached to a movable part
skeletal muscle composition myofilament-myofibril-muscle fibers (cell)-fascicle-muscle body
Functions of skeletal system generate heat; produce body movements; stabilize joint; maintain posture
Motor Neuron neuron that transmits impulse from central nervous system to an effector
Created by: AnneG09



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