gastric shield

gastric shield

[′gas·trik ′shēld]
(invertebrate zoology)
A thickening of the stomach wall in some mollusks for mixing the contents.
References in periodicals archive ?
The epithelium is covered by a thick layer of PAS-positive gastric shield (Fig.
This could explain the weak AP activity at the luminal surface of the crop, the first and second intestinal parts, and in the gastric shield of the stomach.