Muscular Systemmm
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Abduction | moving a body part away from the midline.
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| Adduction | moving a body part 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 moving one end of a body part in a cicle while the othrt end remains stationary, such as swinging and in a circle.
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| Contract | To shorten,decrease in size,or draw together;an agreement between two or more person.
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| Contractibility | muscle fibers that are stimulated by nerves contract,or become short and thick,which cause movement.
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| Contracture | Tighting 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 stimulus such as a nerve impulse.
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| Extension | increasing the angle between two bones,or straightening a body part.
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| Fascia | fibrous membrane covering, supporting, and seperating muscles.
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| Insertion | End or area of a muscle that moves when the muscle contracts.
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| involuntary | independent action not controlled by choice or desire.
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| muscular system | over 600 muscles make up the system
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| extensibility | the ability to be stretched
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| visceral(smooth)muscle | is found in the internal organs of the body such as those of the digestive and respiratory systems,and the blood vessels and eyes.
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| skeletal muscle | is attached to bones and causes body movement
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| voluntary | skeletal muscle
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| tenclons | storng,tough connective-tissue cords
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| origin | when a muscle attaches to a bone,the end that does not move.
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| flexion | decreasing the angle between twp bones,or bending a body part.
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| rotation | turning a body part around its own axis; for example, turning the head from side to side
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| muscle tone | this state of partial contraction
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