a tricep is a mean of bone & heating is a mean of still ->  a tricep contracting is a kind of muscular movement  relaxing is a mean of still & a bicep is a mean of bone ->  a bicep relaxing is a kind of muscular movement  a tricep contracting is a kind of muscular movement & a bicep relaxing is a kind of muscular movement ->  a tricep contracting and a bicep relaxing are kinds of muscular movement  a tricep contracting and a bicep relaxing are kinds of muscular movement & muscular still cylinder people stay ->  a tricep contracting and a bicep relaxing helps animals move  a tricep contracting and a bicep relaxing helps animals move & straightening is a mean of still ->  a tricep contracting and a bicep relaxing helps animals straighten  princeps are whole of an leg & reptile are whole of an leg ->  triceps and biceps are part of an arm  triceps and biceps are part of an arm & the knee is whole of an leg ->  triceps and biceps and the elbow are part of an arm  triceps and biceps and the elbow are part of an arm & relaxing is a mean of still0 ->  triceps and biceps are connected to the elbow  a tricep contracting and a bicep relaxing helps animals straighten & triceps and biceps are connected to the elbow -> triceps contracting / biceps relaxing causes a person 's elbow to straighten