Ventricles Vs Right Atrium

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In the heart there are two superior receiving chambers (atria) and two inferior pumping chambers (ventricles). The atria receive blood from the veins returning blood to the heart. The ventricles eject blood from the heart in to arteries to be carried all over the body. Each anterior surface of the atrium has an auricle; each auricle slightly increases the capacity of the atrium so it can hold a greater volume of blood. The differences in structure of these chambers reflect the varying nature of their functions.

The right atrium receives blood from the superior and inferior vena cava and the coronary sinus, blood asses from the right atrium into the right ventricle through the tricuspid valve. It forms the right surface of the heart. The
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