pulmonary veins
Yes it is a Blood Vessel
The vena cava carries deoxygenated blood into the left atrium.
The Pulmonary Vein carries oxygenated blood from the lungs to the Left Atrium.
Blood that comes in to the right atrium comes from the pulmonary vein.
The pulmonary veins bring oxygenated blood from the lungs to the left atrium of the heart.
left atrium
Veins return blood to the heart. Four veins enter the heart. The superior vena cava (SVC) returns blood from the head, neck and arms and enters the right atrium of the heart. The inferior vena cava (IVC) returns blood from the rest of the body and also enters the right atrium of the heart. The left and right pulmonary veins return blood from the lungs and enter the left atrium.
As deoxygenated blood returns from the body, it flows from the vena cava into the right atrium. From the right atrium the blood flows into the right ventricle which pumps the blood through the pulmonary artery to the lungs. Oxygenated blood returns from the lungs via the pulmonary vein and enters the left atrium. The left atrium empties into the left ventricle which pumps the blood through the aorta and to the body.
Blood transported by the pulmonary veins returns to the left atrium of the heart. The pulmonary vein carries oxygenated blood away from the lungs.
Simply the deoxygenated blood goes into right atrium into right ventricle. oxygenated blood goes into left atrium then into left ventricle
vena cava
Blood becomes oxygenated in the lungs, then the oxygenated blood goes to the heart via the pulmonary veins and enters the left atrium