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Muscular System
Question | Answer |
---|---|
muscular system | over 600 muscles make up the system |
fashia | tough, sheet like membrane |
excitability | irritability, the ability to respond to a stimulus such as a nerve impulse |
origin | does not move |
contractibility | muscle fibers that are stimulated by nerves contract |
abduction | moving body part away from the body |
extensibility | the ability to be stretched |
flexion | decreasing angle between two bones |
elasticity | allows the muscle to return to its original shape after it has contracted or stretched |
rotation | turning body part around on its own axis |
cardiac muscle | forms the walls of the heart and contracts to circulate blood |
circumduction | moving in a circle |
smooth muscle | found in internal organs of the body |
muscle tone | state of partial contraction |
involuntary muscle | they function without control |
contracture | severe tightening |
skeletal muscle | attached to bones and causes body movement |
voluntary muscle | muscle that person has control over |
tendons | strong, tough connective tissue cords |
adduction | moving body part toward the body |