During development of the fetus, the interatrial septum develops to separate the left and right atria.
Atrial systole is the contraction of the heart muscle (myocardia) of the left and right atria.
Then they attached the device to the remnants of the heart's two top chambers, the left and right atria.
It opens and closes in response to pressure gradients between the left and right atria.
An atrial myxoma is a benign tumor of the heart, commonly found within the left and right atria on the interatrial septum.
The impulse travels next through the left and right atria and summates at the atrioventricular node.
Cardiovascular activity of 14-deoxy-11,12-didehydroandrographolide in the anaesthetised rat and isolated right atria.
The left and right atria are smaller chambers that pump blood into the ventricles.
Through the catheter, a device is then placed which blocks the hole between the left and right atria of the heart.
Atrial systole represents the contraction of myocardium of the left and right atria.