What is the Esophageal hiatus?
The esophageal hiatus refers to the esophageal passageway through the diaphragm, which is constituted of the medial fibers of the diaphragm’s right crus as they arch across to the midline’s left side. These create a tubular envelope around the human esophagus, and consist of an elliptical aperture.
It is known as Hiatus oesophageus in Latin and as Hiatus oesophagien in French.
Esophageal hiatus Location
It is situated at the same level as the T10 or 10th thoracic vertebra, in the muscular section of the diaphragm. It can be found in the right crus, which is a tendon-like structure connecting the spine to the diaphragm. It is below this hiatus that the right crus fibers cross each other.
Esophageal hiatus Anatomy
It has an elliptical shape. The elastic fascia located on the diaphragm’s lower surface projects up through the elliptical opening and deeply inserts into the esophageal wall. The fascial system lets movement between the diaphragm and the esophagus to be flexible. It also blocks the esophagus’ upward displacement.
Esophageal hiatus Function
It is primarily important for being a passageway and mainly benefits the food pipe to the stomach, the esophagus. While passing through the hiatus on the way to stomach, the esophagus is constricted by muscles that prevent the entry of stomach fluids to the lungs or the esophagus while breathing. Everything is kept securely in place due to slight muscular tension and a tough grasp.
Esophageal Hiatus Hernia
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