muscular dystrophy

actin affect anatomy arm atrophied autosomal becker bicep biceps biology bone bracchium breakdown care compared condition contraction degeneration diagnosis disease diseases disorder duchenne dystrophin dystrophy educational explanation fiber health healthcare healthy human ill illustration lacertus loss males medical medicine muscle muscular musculoskeletal mutation myopathy myosin myotonic normal ossis poor protein recessive scheme science skeletal strong system time tissue tori torus vector versus weak weakening weakness