Why is the head tilt chin lift procedure performed in cpr?

The head tilt-chin lift procedure is performed in CPR to open the airway of an unresponsive victim. By tilting the head back and lifting the chin, it helps to reposition the tongue away from the back of the throat, allowing for better airflow. This technique is crucial in ensuring that rescue breaths can be delivered effectively during cardiac arrest, thereby increasing the chances of restoring normal breathing and circulation.