Definition: the initial portion of the pyloric part of the stomach, which may temporarily become partially or completely shut off from the remainder of the stomach during digestion by peristaltic contraction of the prepyloric “sphincter”; it is sometimes demarcated from the second part of the pyloric part of the stomach (pyloric canal) by a slight groove.
Synonym(s): antrum pyloricumTA, antrum2TA, lesser cul-de-sac
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.