What is the large muscle that helps to move air in and out of the lungs called?

Question

Quizplus · Accepted Answer

The diaphragm is a large muscle located at the bottom of the chest cavity that helps to move air in and out of the lungs. It contracts and relaxes to create negative and positive pressure, which allows air to flow in and out of the lungs. The trachea is a tube that carries air to and from the lungs, the alveolus is a tiny air sac in the lungs where oxygen and carbon dioxide exchange occurs, and the bronchus is a branch of the trachea that carries air into the lungs. While all of these structures are involved in breathing, the diaphragm is specifically responsible for the movement of air in and out of the lungs.

What Is the Large Muscle That Helps to Move Air