explain step by step process of blood circulation in your body
Answers
Explanation:
Deoxygenated blood come from two sections of the body to the heart, one from the parts above it(superior section) and other from below it(inferior sec.). These veins are called superior vena cava and inferior vena cava. These veins pump the blood to the right auricle of the heart during auricular diastole(relaxation). These auricles then contract and pump the blood to their lower chamber, the right ventricle. The ventricles again systole(contract) and the auricles diastole, which pumps the blood to the lungs through pulmonary artery. After getting oxygenated, the blood come back to heart through four pulmonary veins into the left auricle during auricular diastole. The auricles systole and pump the blood to the left ventricle. The ventricles systole and pump the oxygenated blood to all parts of the body through aorta.
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