| A | B |
|---|
| voluntary muscle | skeletal |
| involuntary muscles | cardiac and visceral/smooth |
| tough sheetlike membrane covers and protects the tissue and attaches muscles to bones | fascia |
| common contracture | foot drop |
| muscles weaken or shrink from lack of use | atrophy |
| sudden, painful, involuntary muscle contractions | muscle spasms |
| chronic, widespread pain in specific muscle sites | fibromyalgia |
| muscles are partially contracted at all times | muscle tone |
| what happens to muscles when they contract | become shorter and thicker |
| movement of extremity out away from the body | abduction |
| straightening of a joint, increasing the angle | extension |
| bending a body part, decreasing the angel between two bones | flexion |
| moving a body part toward the midlin | adduction |
| turning a body part around its own axis, like head from side to side | rotation |
| moving in a circle at a joint | circumduction |
| severe tightening of a flexor muscle resulting in bending of a joint from inactivity | contracture |
| Muscle on the upper back and neck that extends the head and moves the shoulder | trapezius |
| muscle on the upper arm that extends the lower arm | triceps brachii |
| muscle on the upper chest that adducts and flexes the upper arm | pectoralis major |
| muscle on the front of the thigh that extends the leg | quadriceps femoris |
| muscle that extens from the ribs to the pubis and compresses the abdomen | rectus abdominus |
| muscle on the front of the lower leg that flexes ad inverts the foot | tibialis anterior |
| muscle on the buttocks that extends the thigh | gluteus masimus |
| muscles that are injection sites | deltoid, gluteus maximus, quadriceps femoris |
| group of inherited disease that lead to chronic, progressive muscle atrophy | muscular dystrophy |
| the end of a muscle that moves when the muscle contracts | insertion |
| control over the action of a muscle | voluntary |
| ability of a muscle to be stretched | extensibility |
| ability of a muscle to respond to a stimuls | excitability |
| ability of a muscle to return to its original shape | elasticity |
| strong, tough, connective-tissue cord that attaches muscles to bone | tendon |
| muscle that contracts to circulate blood | cardiac muscle |
| contracts to cause movement in the internal organs | visceral or smooth muscle |
| attaches to bones and causes body movement | skeletal muscle |
| functions of skeletal muscles | attach to bones to provide voluntary movement; produce heat and energy for the body; help maintain posture; protect internal organs |
| treatments for a strain | rest, muscle relaxants, elevate, alternate hot and cold |
| treatments for muscle spasms | gentle pressure and stretching |
| treatments for fibromyalgia | physical therapy, massage, exercise, stress reduction, medication to relax muscles and relieve pain |
| the end of a muscle that does not move when a muscle contracts | origin |
| muscles function without conscious thought | involuntary muscle |
| ability of a muscle to contract or become short and thick causing movement | contractibility |
