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Angle of His

Anatomical structure

Field	Value
Name	Angle of His
Image	Illu stomach.jpg
Caption	The angle of His is formed between the esophagus (the tube arriving at the top of the image) and the cardia (position 6)
Width	250

The angle of His, also known as the esophagogastric angle, is the acute angle created between the cardia at the entrance to the stomach, and the esophagus. It helps to prevent reflux of stomach acid into the esophagus. It is commonly undeveloped in infants, making acid reflux fairly common in adults.

Structure

The angle of His is the acute angle between the stomach and the esophagus. It is created by the collar sling fibres and the circular muscles around this gastroesophageal junction.

Variation

The angle of His is normally undeveloped in infants, with the esophagus making a vertical junction with the stomach. As a result, reflux of stomach contents is common.

Function

The angle of His forms an anatomical sphincter. This prevents the reflux of stomach acid, digestive enzymes, and duodenal bile from entering the esophagus. This is important in preventing gastroesophageal reflux disease and inflammation of the esophagus.

History

The angle of His is also known as the esophagogastric angle. It was named after the Swiss anatomist Wilhelm His Jr. by the Scottish anatomist Daniel John Cunningham in 1906.

References

(1998-01-01). "Gastroesophageal reflux after distal gastrectomy: possible significance of the angle of His". The American Journal of Gastroenterology.
"Mastery of surgery, Volume 1".
Sircar, Sabyasachi.. (2008). "Principles of medical physiology". Thieme.
(1942-04-01). "Chronic Peptic Ulcer of the Oesophagus and ITS Association with Congenitally Short Oesophagus and Diaphragmatic Hernia". QJM: An International Journal of Medicine.
[http://emedicine.medscape.com/article/178393-overview Hiatal Hernia] eMedicine Retrieved 30 January 2010
(1961-03-01). "Management of Esophageal Hiatus Hernia Syndrome and Associated Abnormalities with Balanced Operations". Diseases of the Chest.
Turk, R. P.. (2006). "Gastroesophageal Reflux Disease: Principles of Disease, Diagnosis, and Treatment". Springer.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

digestive-system

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