How does blood circulate?

The problem of blood circulation is a very important issue. Nowadays, many people's blood circulation is not very good. This situation is quite serious. If there is a problem with blood circulation, it may bring certain dangers to our health. Seeking some methods for treatment earlier can more effectively help us restore our health. Let us understand how blood circulates.

1. The human blood circulation is a closed double circulation consisting of systemic circulation and pulmonary circulation. Blood is ejected from the left ventricle through the aorta and its branches to the capillaries throughout the body, where it exchanges substances with the tissue fluid, supplies oxygen and nutrients to tissue cells, and transports away carbon dioxide and metabolic products, turning arterial blood into venous blood. It then flows back to the right atrium through the veins at all levels and merges into the superior and inferior vena cava. This circulation is called systemic circulation. Blood is ejected from the right ventricle and flows through the pulmonary artery to the pulmonary capillaries, where it exchanges gases with the alveolar gas, absorbs oxygen and releases carbon dioxide, and venous blood becomes arterial blood; it then flows back to the left atrium through the pulmonary vein. This circulation is called pulmonary circulation.

2. The blood circulation pathways are divided into systemic circulation and pulmonary circulation.

Systemic circulation: The ventricles contract, and arterial blood is ejected from the left ventricle into the aorta, then flows through the aorta and its branches to the capillaries of tissues throughout the body. At this time, the oxygen and nutrients in the blood are exchanged with the carbon dioxide and metabolic end products in the cells. The arterial blood becomes venous blood, which is collected through the veins and finally flows back to the right atrium through the superior and inferior vena cava.

Pulmonary circulation: When the ventricles contract, venous blood is ejected from the right ventricle into the pulmonary artery, and then reaches the capillaries of the alveolar diaphragm through the branches of the arteries. At this time, the carbon dioxide in the blood is exchanged with the oxygen in the alveoli, and the venous blood becomes arterial blood, and then converges into the pulmonary veins and is injected into the left atrium.

You may want to learn more about how blood circulates. Blood circulation supports our entire life activities. We should try not to have problems with our blood circulation, otherwise it will be very difficult to lose weight after fat accumulates. We must pay attention to health care in our daily life. It is very necessary to develop good living habits and lifestyle.