Labels:hakham | house | lodestone | monitor | person | traffic light | tree OCR: HELP Joints anoMuscles Page You use musc les or make Elbow your body move Muscles The cause movement by becoming shorter contracting As they contr act, they -pull against the bone causing your body to bend or muscle Muscles straighten are attached to The flexor the arm muscle up pulls The pulls the extensor arm down your bones by tendons muscle can move joint in one direction only can pull but not push You need second muscle on the other side of the joint to pull the muscle the other way.
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