Muscular SystemMuscle Structure |
Which type of lever system works at the greatest speed, but at a mechanical disadvantage? |
Third-class levers work at the greatest speed, but at a mechanical disadvantage. This arrangement is load-effort-fulcrum. Most skeletal muscles in the body, such as the bicep muscle of the arm, act in third-class lever systems. The biceps lift the distal forearm and anything carried in the hand. The elbow acts as the fulcrum.