What is another word for atrium of the heart?
Pronunciation: [ˈatɹi͡əm ɒvðə hˈɑːt] (IPA) 
The atrium of the heart is a crucial component of the cardiovascular system. It is the upper chamber of the heart that receives blood from veins and pumps it into the lower chamber, known as the ventricle. There are several synonyms for the atrium, including the auricle, the atrial chamber, and the atrial appendage. The auricle is a term that is commonly used to describe the atrium because it has a similar shape to an ear. The atrial chamber is another synonym that is used to describe the upper portion of the heart, while the atrial appendage is a small, pouch-like extension that is connected to the atrium. Together, these synonyms help to describe the different aspects of the atrium of the heart and its functions.
