The Full Wiki

More info on Pyloric antrum

Pyloric antrum: Wikis


Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.


From Wikipedia, the free encyclopedia

Pyloric antrum
Outline of stomach, showing its anatomical landmarks. (Pyloric antrum visible at left.)
Interior of the stomach. (Pyloric antrum visible at left.)
Latin antrum pyloricum
Gray's subject #247 1162
MeSH Pyloric+Antrum

Pyloric antrum (antrum, lesser cul-de-sac) is the initial portion of the pyloric part of the stomach. It is near the bottom of the stomach on the left side of the pyloric sphincter, which separates the stomach and the duodenum.

It 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 demarcated, sometimes, from the second part of the pyloric part of the stomach (pyloric canal) by a slight groove.



The pyloric antrum is the location of several important endocrine cells including Gastrin-producing G Cells (stimulate acid production) and the luminal-pH-sensitive population of somatostatin producing of D cells (responsible for shutting off acid secretion. There is a second hormone-sensitive population near the fundus.)


Pylorus — lesser, atrum — cave; cavern; hollow place with overarching foliage; cavity, hollow; tomb

Additional images

stomach ph 2.567


  • William F Ganong. "Review of Medical Physiology, 22nd Edition."
  • Physiology Lecture Notes.

External links

Got something to say? Make a comment.
Your name
Your email address