Why does the heimlich maneuver work?

Answer 1

help remove foreign object from the airway by forcing air from the lung and creating a cough. help remove foreign object from the airway by forcing air from the lung and creating a cough. help remove foreign object from the airway by forcing air from the lung and creating a cough.

Answer 2

The usual technique is done while standing behind the victim. Reach around his waist to the abdomen just above the navel and below the sternum. Clench one fist and use the other to press it into the abdomen. Lift both fists sharply inward and upward to compress the lungs. Repeat if necessary unless vomiting occurs.