The left and right atrium are the upper chambers, and the left and right ventricles are the bottom chambers. Heart valves open to allow blood to flow between the chambers and in and out of the heart.

A later modification was by routing the blood from the inferior vena cava to the right pulmonary artery outside of the right atrium through an extracardiac conduit. The right atrium is closed off ...

Right coronary artery supplies the right atrium and right ventricle with blood. It branches into the posterior descending artery, which supplies the bottom portion of the left ventricle and back ...

An electrocardiogram revealed definite hypertrophy of the right ventricle, atrial enlargement, and possible hypertrophy of the left ventricle. The catheter could not be advanced beyond the grossly ...

The lower chambers are known as the left and right ventricles. The two on top, which are the ones involved in the arrhythmia you have been diagnosed with, are called the left and right atrium.

The left ventricular lead is inserted through the coronary sinus in the right atrium, then fed posteriorly toward the left ventricle. The indications for biventricular pacing are as follows: ...

There are two atrium (left and right), in the upper part of your heart. You then have two ventricles (left and right) in the lower part.

The large blood vessel then continues between the left atrium and left ventricle, running along the interventricular groove, and finally empties into the right atrium.

Single ventricle physiology defects are congenital conditions that develop well before a baby is even born. In fact, they tend to occur around the time the baby’s heart forms — during the ...

Four young infants three, four, twenty and three days of age respectively were studied by selective cineangiography of the right ventricle. All had had cyanosis and dyspnea since birth. Contrast ...