muscular system
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| muscular system | Helps with movement, Supports body posture
Produces heat and energy,Protects internal organs,
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| excitability / irritability | ability to respond to a stimulus. Muscles can be stimulated electrically, mechanically, or chemically.
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| Contractability | The ability to shorten and produce movement when stimulated.
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| Extensibility | The ability to be stretched and lengthen.
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| Elasticity | The ability to return to its original shape after contracting or stretching.
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| Muscle tone | the ability of muscles to be slightly contracted at all times, allowing a person to be in a state of readiness to act.
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| Cardiac muscle | forms the walls of the heart. When it contracts, this type of muscle causes the heart to beat to circulate blood.
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| Visceral (smooth) muscle | found in hollow organs, in the walls of blood vessels, and in the eyes. It contracts to produce movement in these organs.
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| Skeletal muscle | attached to the bones. It helps produce body movement.
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| involuntary | are not controlled by a person’s conscious thought, or will
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| voluntary | a person can control their actions.
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| ligaments | attach bone to bone
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| tendons | bands of fibrous tissue attaching muscle to bone
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| Origin | The end of the muscle that is connected to the bone that does not move
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| Insertion | The end connected to the bone that moves when the muscle contracts
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| Fascia | sheet of tough fibrous tissue that wraps around an individual muscle.
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| flexion | Bending a body part, which decreases the angle of the joint.
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| extension | Straightening a body part, which increases the angle of the joint.
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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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| rotation | Turning a body part around on its own axis to produce a circular or semi-circular motion.
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| atrophy | a reduction in size and strength of the muscle.
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| contracture | a severe tightening of muscle resulting in permanent bending of a joint.
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| muscle strain | torn or stretched muscles or tendons.
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| fibromyalgia | a group of muscle disorders with chronic pain in specific muscle sites.
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| muscular dystrophy | a group of inherited diseases in which the muscles gradually atrophy, or waste away.
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Created by:
mscardenas