Completar frases InjuriesVersión en línea Injuries to the locomotor system por Mariam Domingo 1 twisting fracture ligaments ankles plaster contraction break strains effort posture heal cast Bone . These happen when bones or crack . In order for the bone to , it needs to be held in place with a . Sprains . These involve damage to , usually caused by . Sprains are most common in the , knees and wrists . Muscle . These consist of an involuntary and prolonged muscle . Caused by excessive or bad .