The left atrium is one of the four chambers of the heart, located on the left posterior side. Its primary roles are to act as a holding chamber for blood returning from the lungs and to act as a ...

The Oxford Chamber Music Society’s new season, launched with a recital by cellist Colin Carr, continued with young ensemble the Atrium String Quartet. On paper, this looked like a move from ...

So, your heart has two different chambers. It's got upper chambers called your atrium and lower chambers called your ventricle. And the ventricle is really the workhorse that actually pumps blood ...