"Atrium Dextrum" is a Latin term that refers to the right atrium of the heart. There are several synonyms for this term that are commonly used in medical and scientific contexts. One of the most commonly used synonyms is "right auricle," which refers to the upper chamber of the heart that receives blood from the body before it is sent to the lungs for oxygenation. Other synonyms include "right cardiac chamber," "right atrial chamber," and "right atrial cavity." These terms are used interchangeably to describe the same anatomical structure in the heart. Understanding the synonyms for "atrium dextrum" is important for accurate communication in medical and scientific settings.