Kerckring's valve

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• valve — 1. A fold of the lining membrane of a canal or other hollow organ serving to retard or prevent a reflux of fluid. 2. Any formation or reduplication of tissue, or flaplike structure …   Medical dictionary

• valve of kerckring — ˈkerkriŋ Usage: usually capitalized K Etymology: after Theodor Kerckring died 1639 Du. anatomist : plica circularis …   Useful english dictionary

• Kerckring — Theodor, Dutch anatomist, 1640–1693. See K. center, K. folds, under fold, ossicle, K. valves, under valve …   Medical dictionary

• fold — 1. A ridge or margin apparently formed by the doubling back of a lamina. SYN: plica. 2. In the embryo, a transient elevation or reduplication of tissue in the form of a lamina …   Medical dictionary

• digestive system, human — Introduction  the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract (alimentary canal), or the series of structures and organs through which food and liquids pass… …   Universalium

• Circular folds — Interior of the descending portion of the duodenum, showing the Major duodenal papilla. Latin plicae circulares Gray s …   Wikipedia