| A | B |
|---|
| Muscles | bundles of muscle fiber |
| contract | working, pull, become shorter and thicker |
| relax | not working, longer, thinner |
| voluntary | is controled by thought |
| involuntary | works without conscious thought, you cannot control |
| Fibromyalgia | chronic widespread pain in muscles |
| skeletal muscles | attached to bones, movement, voluntary |
| abduction | leg is moved out to the side away from the body |
| extension | lower leg straightened away from upper leg |
| muscular dystrophy | inherited atrophy |
| Adduction | moving body part toward midline |
| Abduction | moving body part away from the midline |
| tendon | strong tough, connects muscle to bone |
| elasticity | ability to return to original shape |
| excitability | ability to respond to stimulus |
| extensibility | ability to stretch |
| muscle spasms | sudden painful contractions |
| muscle tone | muscles are partially contracted |
| insertion | end of the muscle that MOVES when muscle contracts |
| origin | end of the muscle that does NOT move when the muscle contracts |
| contracture | SEVERE tightening of a muscle |
| circumduction | moving in a circle at a joint, moving one end in a circle |
| extension | INCREASE the angle between 2 bones, straightening body part |
| rotation | turning a body part around its own axis, head side to side |
| flexion | decreasing the angle between tow bones, bending body part |
| facia | tough sheet like membrane, protects tissue |
| smooth muscles | found in internal organs, visceral, cause movement in organs |
| cardiac muscle | walls of heart, contract to circulate blood |
| functions | attache to bones to provide MOVEMENT, produce HEAT, ENERGY, maintain POSTURE hold body erect, PROTECT internal organs |
