In lungfish, the heart is partially divided into a right and left atrium. The sinus venosus opens into the right side of the atrium. Vessels from the lung return oxygenated blood to the left atrium ...

Persistent left superior vena cava (PLSVC): The large vein, known as the superior vena cava, usually drains into the right atrium. PLSVC occurs when this vein appears on the left side of the heart ...

Left pulmonary veins to right atrium via a persistent superior vena cava on the left and the coronary sinus. In 2 cases the anomaly just described appears to be present.

A heart beat The heart is relaxed and blood flows into both sides from the veins. The right and left atrium contract. Blood is forced into the right and left ventricles. The ventricles quickly ...

E10.5. In the right part of the common atrium, the right and left venous valves delineated the ostia of the cardinal veins entering the sinus venosus. In both wild-type and knockout embryos, MLC2a ...

So, the system goes like this: the right atrium receives blood that’s already been around your body, with little oxygen left in it, from the vena cava veins.

The right atrium was slightly dilated and contained an ante-mortem clot friable on 1 surface; the right appendage contained numerous ante-mortem clots. The right ventricle was dilated: its wall ...

Isolation of the pulmonary veins (PVs) is an established therapeutic option for patients with paroxysmal atrial fibrillation (AF) resulting in approximately 50-85% freedom from recurrent AF within ...