Definition that contains atrium
- ventricle a chamber of the heart that receives blood from an atrium and pumps it to the arteries
- auricle a small conical pouch projecting from the upper anterior part of each atrium of the heart
- auricular appendix a pouch projecting from the top front of each atrium of the heart
- bicuspid valve valve with two cusps; situated between the left atrium and the left ventricle
- vena cava either of two large veins that return oxygen-depleted blood to the right atrium of the heart
- sinus coronarius a short sinus receiving most of the veins of the heart; empties into the right atrium
- mitral valve prolapse cardiopathy resulting from the mitral valve not regulating the flow of blood between the left atrium and left ventricle of the heart
- atrioventricular valve either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium
- pulmonary vein any of four veins that carry arterial blood from the lungs to the left atrium of the heart
- left atrioventricular valve valve with two cusps; situated between the left atrium and the left ventricle