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My muscular study
Hs1 muscuar system key
| Question | Answer |
|---|---|
| muscular system | bundles of muscle fibers held together by tissues |
| excitability | irritability,the ability to respond to a stimulus such as nerve impulse |
| contractibility? | muscle fibers that are stimulated by nerves contract, or become short and thck, which causes movement. |
| extensibility | the ability to be stretched |
| 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 (smooth muscle) | found in the internal organs of the body such as those of the digestive and respiratory system, and the blood vessels and eyes |
| involuntary | they function without conscious thought or control. such as the cardiac and visceral muscles |
| skeletal muscle | attached to the bones and causes body movement |
| voluntary | person has control over its action |
| Tendons | Strong, tough connective tissue cords |
| Fascia | a tough,sheet like membrane that covers and protects the tissues |
| origin | a muscle attaches to a bone,the end that does not move is called the origin |
| insertion | the end that moves when the muscle contracts is called the insertion |
| Adduction | Movement of a limb toward the midline of the body |
| abduction | the movement of a limb away from the midline of the body. |
| Flexion | a position that is made possible by the joint angle decreasing. |
| contracture | is a shortening of a muscle in the human body. |
| muscle tone | is the continuous and passive partial contraction of the muscles. |
| Rotation |
Created by:
detroy22