plica circularis
noun
plica cir·cu·la·ris
| \ -ˌsərkyəˈla(a)rə̇s\
plural plicae circulares\ -(ˌ)rēz \
Definition of plica circularis
: one of numerous permanent crescentic folds of mucous membrane found in the small intestine especially in the lower part of the duodenum and the jejunum
— called also valvula connivens
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