The diaphragm is the primary muscle used in respiration, which is the process of breathing. This dome-shaped muscle is located just below the lungs and heart. It contracts continually as you breathe ...

Diaphragm flutter — also known as diaphragmatic flutter or diaphragmatic myoclonus — is a rare disorder in which your diaphragm experiences repeated involuntary contractions. The diaphragm is a muscle ...