Remember veins back to the heart. This goes into the heart to deliver oxygen.
Blood enters the lungs via the pulmonary arteries. In the capillaries red blood cells exchange CO2 and O2 with air in the alveoli. The blood continues its journey in vessles called the pulmonary veins which drain into the left artrium of the heart.
The left and right lung.
to the lungs
...to the lungs.
Blood leaves the pulmonary artery and travels into the lungs. In the lungs the blood releases carbon dioxide and picks up oxygen.
Remember arteries away from the heart. This goes into the lungs to pick up oxygen.
The Pulmonary arteries
Blood leaves the right side of the heart and goes to out the pulmonary trunk (a very large artery) to the pulmonary arteries (left and right) to the capillaries in the lungs and picks up oxygen.
to the lungs
The systemic arteriole, then the capillaries, the venule, the vein, the vena cava, the heart, the pulmonary artery, the pulmonary arterioles, capillaries, the pulmonary veins, the heart, into the aorta, and back into the artery.
It flows through the pulmonary artery and towards the lungs where the blood will become oxygenated.
There are two tubes that take blood out of the heart. These are the pulmonary artery and the aorta.
right atrium -> right ventricle -> pulmonary artery -> pulmonary vein -> left atrium -> left ventricle -> aorta
After blood leaves the left ventricle, it goes through the aortic valve to be pumped throughout the body.