Final answer:
Applying local direct pressure is the most effective method to control external bleeding from an extremity.
Step-by-step explanation:
Most cases of external bleeding from an extremity can be controlled by applying local direct pressure. When there is external bleeding, applying pressure directly to the wound can help stop the bleeding by slowing down or stopping the flow of blood. This can be done by using a clean cloth, gauze, or your hand to apply direct pressure to the bleeding area.