valvula spiralis
noun
valvula spi·ra·lis
| \ -ˌspīˈralə̇s, -rāl-; spə̇ˈräl-\
plural valvulae spirales\ -a(ˌ)lēz , -ā(ˌ)lēz , -ä(ˌ)lās \
Definition of valvula spiralis
: a series of crescentic folds of mucous membrane somewhat spirally arranged on the interior of the gallbladder and continuing into the cystic duct
— called also valve of Heister
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