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15-Chapter
Vocabulary-Muscles
Question | Answer |
---|---|
abduction | Movement away from the midline of the body |
adduction | Movement toward the midline of the body |
dorsiflexion | Backward (upward) bending of the foot |
extension | Straightening of a flexed limb |
fascia | Fibrous membrane separating and enveloping muscles |
flexion | Bending a limb: decreasing the angle between bones |
insertion of a muscle | Connection of the muscle to a bone that moves |
origin of a muscle | Connection of the muscle to a stationary bone |
plantar flexion | Bending the sole of the foot downward towards the ground |
pronation | Turning the palm down |
rotation | Circular movement around a centeral point |
skeletal muscle | Muscle connected to bones: voluntary or striated muscle |
smooth muscle | Visceral muscle |
striated muscle | Skeletal muscle |
supination | Turning the palm upward |
visceral muscle | Muscle connected to internal organs: involuntary or smooth muscle |
muscular dystrophy | Group of inherited diseases characterized by progressive weakness and degeneration of muscle fibers without involvement of the nervous system |
Duchenne muscular dystrophy | Most common form, muscles appear to enlarge (pseudohypertrophy) as fat replaces functional muscle cells that have degenerated and atrophied |
polymyositis | Chronic inflammatory myopathy. This condition is marked by symmetrical muscle weakness and pain, often accompanied by a rash around the eyes and on the face and limbs. |