Verywell Health on MSN

The diaphragm: Anatomy and function

Medically reviewed by Sanja Jelic, MD Key Takeaways The diaphragm is the main muscle used for breathing. The diaphragm helps ...
The phrenic nerve is the nerve that controls your diaphragm, the dome-shaped muscle that helps you breathe. The diaphragm muscles expand and tighten the lungs to help you draw air into them. The ...