Heart chambers are the four distinct spaces within the heart that receive and distribute blood throughout the body. Synonyms for heart chambers include cardiac chambers, ventricles, atria, and cardiac cavities. The ventricles pump oxygen-depleted blood to the lungs and body, while the atria receive oxygen-rich blood from the lungs and pumps it to the ventricles. Cardiac cavities refer to the interior spaces of the heart, while cardiac chambers can be used interchangeably with the term heart chambers. Understanding these synonyms for heart chambers is crucial for medical professionals and individuals seeking to gain knowledge of the heart's anatomy and function.