Human Physiology ( Blood circulation within the heart )

Step 1

The right atrium receives deoxygenated blood from inferior and superior vena cava

Step 2

The deoxygenated blood transfer from the right atrium → right AV valve → right ventricles

Step 3

The right ventricles contracts to forcing the opening of pulmonary valves that leads to the transfer of deoxygenated blood from the right ventricles → pulmonary valve → pulmonary trunk

Step 4

The deoxygenated blood transfer from the pulmonary trunk to left and right pulmonary arteries, and transfer the deoxygenated blood to the alveoli of the lungs that leads to the release of carbon dioxide and picks up oxygen

Step 5

The oxygenated blood return to the left atrium through pulmonary veins

Step 6

The oxygenated blood transfers from the left atrium → left AV valves → left ventricles

Step 7

The left ventricles contracts, which leads to the opening of aortic valve

Step 8

The oxygenated blood transfer from the left ventricle → aortic valve → aorta

Step 9

The aorta transfer the oxygenated blood through several branches of small aorta, which then transfer the oxygenated blood to several tissues within the body to release oxygen and pick up carbon dioxide

Step 10

The deoxygenated blood returns to the right atrium through both vena cava