Oxygen-poor blood enters the heart through the right atrium
When blood leaves the lungs through the pulmonary veins, it returns to the heart and enters the left ventricle.
Right atrium is where the blood enters through superior or inferior vena cava.
Through the vena cava. Blood enters the heart at the right atrium when from the systemic circulation. It Gets here through the superior and inferior vena cava and the coronary sinus. From the pulmonary circulation it enters the left atrium from the pulmonary vein.
The blood re-enters the heart through the superior vena cava and into the right atrium.
blood first enters the heart through the right atrium.
left ventricle Blood enters the left & right atria. Blood entering the left ventricle came from the left atrium. Blood from the body enters the right atrium. From there it is pumped to the right ventricle, through the lungs, to the left atrium, to the left ventricle, then throughout the body. Then back to the right atrium...
You get deoxygenated or impure blood from the whole body. It enters the right atrium. Right atrium pumps the blood in right ventricle. From right ventricle blood goes to your lungs. Here the blood gets oxygenated or get purified. Then it enters your left atrium. Left atrium pumps the blood in left ventricle. Left ventricle pumps the blood to your whole body.
In the pulmonary circulation, deoxygenated blood leaves the right section of the heart through the pulmonary artery, enters the lungs and oxygenated blood comes through the pulmonary veins. The blood then moves to the left atrium of the heart.
Oxygenated blood from the lungs enters the left atrium. The blood then moves from there to the left ventricle, aorta, and on the rest of the body.
Beginning with the return of blood to the heart from the systemic circulation, blood enters the right atrium, then the right ventricle, through the pulmonary trunk to the pulmonary arteries and the lungs, through the pulmonary veins, into the left atrium, left ventricle and is then pumped into the aorta.blood enters and exits the heart through the arteries. blood will exit the right atrium through the pulmonary artery and head towards the lungs. once blood is oxygenated by the lungs it will come back to the heart through the coronary artery and enter in the left atrium.
Blood enters the left atrium through the pulmonary veins, and is pumped into the left ventricle through the mitral valve.
The blood enters through the superior and inferior vena cava.