Muscular System Vocabulary Definitions & Abbreviations
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Voluntary | under one's control; done by one's choice or desire.
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Abduction | movement away from the midline.
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Adduction | movement toward the midline.
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Cardiac Muscle | forms the walls of the heart and contracts to circulate blood.
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Circumduction | moving in a circle at a joint, or movig one end of a body part in a circle while the other end remains stationary.
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Contract | to shorten,decrease in size, or draw together; an agreement between two or more persons.
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Contractibility | muscle fibers that are stimulated by nerves.
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Contracture | tightening or shortening of a muscle.
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Elasticity | allows the muscle to return to its original shape after it has contracted or stretched.
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Excitability | irritability, the ability to respond to a stimulus such as a nerve impulse.
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Extensibility | the ability to be stretched.
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Extension | increasing the angle between two bones, or straightening a body part.
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Fascia | a tough, sheet-like membrane that covers and protects the tissue.
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Flexion | decreasing the angle between two bones, or bending a body part.
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Insertion | the end that moves when the muscle contracts.
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Involuntary | independent action not controlled by choice or desire.
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Muscle Tone | state of partial muscle contraction providing a state of readiness to act.
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Muscular System | bundles of muscle fibers held together by connective tissue.
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Origin | end of area of a muscle that remains stationary when the muscle contracts.
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Rotation | movement around a central axis; a turning.
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Skeletal Muscle | attached to bones and causes body movement.
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Tendans | fibrous connective tissues that connect muscles to bones.
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Visceral(smooth)Muscle | found in the internal organs of the body such as those of the digestive system, respitor system, blood vessels, and eyes.
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abd | abduction
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ACL | anterior cruciate ligament
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add | adduction
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ADL | activities of daily living
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EMG | electromyography
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EMS | electric muscle stimulator
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IM | intramuscular
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MN | myoneural
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MS | musculoskeletal, muscle strength
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