atrium of the heart
English Thesaurus
1. the upper chamber of each half of the heart (noun.body)
| hypernym | : | atrium, |
| definition | : | any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart) (noun.body) |
| hyponym | : | atrium dextrum, right atrium, right atrium of the heart, |
| definition | : | the right upper chamber of the heart that receives blood from the venae cavae and coronary sinus (noun.body) |
| hyponym | : | atrium sinistrum, left atrium, left atrium of the heart, |
| definition | : | the left upper chamber of the heart that receives blood from the pulmonary veins (noun.body) |
| part holonym | : | atrial auricle, auricle, auricula atrii, |
| definition | : | a small conical pouch projecting from the upper anterior part of each atrium of the heart (noun.body) |
| part holonym | : | auricula, auricular appendage, auricular appendix, |
| definition | : | a pouch projecting from the top front of each atrium of the heart (noun.body) |
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