Angle of His

Angle of His
The angle of His is formed between the esophagus (the tube arriving at the top of the image) and the cardia (position 6)
*Anatomical terminology* [edit on Wikidata]

The angle of His is the acute angle created between the cardia at the entrance to the stomach, and the esophagus. It forms a valve, preventing reflux of duodenal bile, enzymes and stomach acid from entering the esophagus, where they can cause inflammation.^[1] The angle is created by the collar sling fibres and the circular muscles around this (gastroesophageal) junction.^[2] The angle of His is normally undeveloped in infancy, with the esophagus making a vertical junction with the stomach, and as a result, reflux of stomach contents is common.^[3]

References

↑ Hiatal Hernia eMedicine Retrieved 30 January 2010
↑ Josef Fischer; K.I. Bland. Mastery of surgery, Volume 1. p. 719.
↑ Sabyasachi, Sircar. Principles of Medical Physiology. p. 435. ISBN 978-1-58890-572-7.

Anatomy of the gastrointestinal tract, excluding the mouth

Upper

Pharynx	Muscles Spaces peripharyngeal retropharyngeal parapharyngeal retrovisceral danger prevertebral Pterygomandibular raphe Pharyngeal raphe Buccopharyngeal fascia Pharyngobasilar fascia Piriform sinus

Esophagus	Sphincters upper lower glands

Stomach	Curvatures greater lesser Angular incisure Cardia Body Fundus Pylorus antrum canal sphincter Gastric mucosa Gastric folds Microanatomy Gastric pits Gastric glands Cardiac glands Fundic glands Pyloric glands Foveolar cell Parietal cell Gastric chief cell Enterochromaffin-like cell

Lower

Small intestine

Microanatomy	Intestinal villus Intestinal gland Enterocyte Enteroendocrine cell Goblet cell Paneth cell

Duodenum	Suspensory muscle Major duodenal papilla Minor duodenal papilla Duodenojejunal flexure Brunner's glands

Jejunum	no substructures

Ileum	Ileocecal valve Peyer's patches Microfold cell

Large

Cecum	Appendix

Colon	Ascending colon Hepatic flexure Transverse colon Splenic flexure Descending colon Sigmoid colon Continuous taenia coli haustra epiploic appendix

Rectum	Transverse folds Ampulla

Anal canal	Anus Anal columns Anal valves Anal sinuses Pectinate line Internal anal sphincter Intersphincteric groove External anal sphincter

Wall

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