The Diaphragm: Anatomy and Function. Story by Lynne Eldridge, MD • 16y. Medically reviewed by Sanja Jelic, MD. The diaphragm is a dome-shaped muscle that separates the chest from the abdomen.

The diaphragm is an important muscle that helps you breathe in and out. We'll go over its different openings and functions before exploring the conditions that can affect the diaphragm. You'll ...

The diaphragm is the dome-shaped structure that separates the thoracic and abdominal cavities. It is the principal muscle of respiration, is innervated by the phrenic nerves that arise from the ...