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Muscular System 01

muscular system 600 muscles make up the system
excitability irritability, the ability to respond to a stimulus such as a nerve impulse
contractibility muscle fibers that stimulated by nerve contract
contract become short and thick, which cause movement
extensibility the ability to be streched
elasticity allows the muscle to return to its original shape after it has contracted or stretched
Cardiac muscle forms the walls of the heart and contracts to circulate blood
Visceral muscle found in the in
Involuntary they function without conscious thought or control (Cardiac and Visceral)
Skeletal muscle attached to bones and causes body movement
Voluntary a person has control over its action (Skeletal)
tendons strong, tough connective tissue cords
fascia a tough, sheet like membrane that covers and protects the tissue
origin end of area of a muscle that remains stationary when the muscle contracts
insertion the end that moves when the muscle contracts
Adduction moving a body part toward the mid line
Abduction moving a body part away from mid line
Flexion decreasing the angle between two bones, or bending a body part
Extension increasing the angle between two bones or straightening a body part
Rotation turning a body part around its own axis for example turning the head from side to side
Circumduction moving in a circle at a joint or moving one end of a body part in a circle while the other and remains stationary such as swinging arm in circle
Muscle tone muscles are partially contracted at all times even when not in use the state of partial contraction
contraction a severe tightening of a flexer muscle resulting in bending of a joint
Created by: Sergiosaurs