Question

How does the diaphragm remove air from the lungs?

When the diaphragm pushes upward, it decreases the volume of the lungs, pushing air out.
When the diaphragm pushes upward, it increases the volume of the lungs, pushing air out.
When the diaphragm pulls downward, it increases the volume of the lungs, pushing air out.
When the diaphragm pulls downward, it decreases the volume of the lungs, pushing air out.

Answer 1

When the diaphragm pushes upward, it decreases the volume of the lungs, pushing air out.

Answer 2

Answer: When, the diaphragm pushes upward, it decreases the volume of the lungs, pushing air out.

Step-by-step explanation:

In exhalation, the diaphragm move upward and the chest wall muscles relax, causing the chest cavity to get smaller and push air out of the respiratory system through the nose or mouth.

When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward. This makes the chest cavity bigger and pulls air through the nose or mouth into the lungs.