atrial auricle

Noun
  1. A small conical pouch projecting from the upper anterior part of each atrium of the heart (synset 105399691)
    is a type of: pocket, pouch - (anatomy) saclike structure in any of various animals (as a marsupial or gopher or pelican)
    is a part of: atrium cordis, atrium of the heart - the upper chamber of each half of the heart
    same as: auricle, auricula atrii

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