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muscular system
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excitability / irritability
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muscular system

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

 



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