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Your Muscles

Muscles attached to your bones are called tricepsskeletal musclesrelaxesbicepsSelect your answer. Skeletal muscles contractspullrelaxestricepsSelect your answer bones to move them. When your arm is bent your tricepsskeletal musclesbicepsrelaxesSelect your answer muscle contracts. When your arm is straight your pullrelaxestricepsbicepsSelect your answer muscle contracts. A muscle becomes shorter and thicker when it contractsrelaxesbicepspullSelect your answer. A muscle becomes longer and thinner when it skeletal musclescontractsrelaxesbicepsSelect your answer. As the biceps muscle contracts, the pulltricepsbicepsskeletal musclesSelect your answer relaxes. As the biceps muscle relaxes, the triceps skeletal musclescontractspullrelaxesSelect your answer.