valvula spiralis

noun

valvula spi·​ra·​lis

-ˌspīˈralə̇s,

-rāl-;

spə̇ˈräl-

plural valvulae spirales

-a(ˌ)lēz,

-ā(ˌ)lēz,

-ä(ˌ)lās

: 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

Word History

Etymology

New Latin, literally, spiral valvula

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