Final answer:
The xiphoid process is the tip of the sternum used as a landmark for the Heimlich maneuver.
Step-by-step explanation:
The tip of the sternum used as a landmark for the Heimlich maneuver is the xiphoid process. The xiphoid process is a small, cartilaginous extension at the bottom of the sternum. During the Heimlich maneuver, pressure is applied directly above the xiphoid process to help dislodge an object blocking the airway.
Learn more about Heimlich maneuver