To create a seal on an unresponsive person's face using a ventilation mask, lift the ______ into the ______.

When performing rescue breaths with a ventilation mask on an unresponsive person, it is crucial to create an airtight seal to ensure effective ventilation. Lifting the person's jaw into the mask helps to achieve this seal. By maneuvering the jaw upward, the mask can fit snugly over the mouth and nose, minimizing the likelihood of air escaping during the ventilation process. This technique not only aids in creating a better seal but also helps to align the airway, which is essential for delivering effective breaths into the lungs. Proper positioning significantly enhances the effectiveness of rescue breaths, making this approach vital in emergency situations.