The diaphragm has several important functions in the human body, including:
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Respiration: The diaphragm is the primary muscle used in respiration, helping you breathe in and out. When you inhale, the diaphragm contracts and flattens, creating a vacuum effect that pulls air into the lungs. When you exhale, the diaphragm relaxes, and the air is pushed out of the lungs.
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Increasing abdominal pressure: The diaphragm also plays a role in increasing pressure inside the abdomen, which is important for functions such as getting rid of urine and feces. This increased pressure can also help prevent acid reflux by putting pressure on the esophagus, the food tube in your throat.
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Assisting in expulsive actions: The diaphragm is involved in various expulsive actions, such as coughing, sneezing, vomiting, crying, and expelling feces, urine, and, during childbirth, the fetus.
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Separating the thoracic and abdominal cavities: The diaphragm is a dome-shaped, muscular, and membranous structure that separates the thoracic and abdominal cavities in mammals. It is attached to the sternum, the bottom of the rib cage, and the spine. The diaphragm is pierced by many structures, including the esophagus, aorta, and inferior vena cava.
