Cardiovascular System - You only have one!
The cardiovascular system is the "heart" of our body par excellence. Therefore, it is important that it is treated accordingly with care. For this, however, it must first be analyzed, interpreted correctly and understood.
Decisive is your attitude to your own body and your life! It is up to you how well you understand your own body and cardiovascular system and the bloodstream of your heart, and how far you can prevent harm yourself. Maybe even your life depends on it!
How does the cardiovascular system work?
The cardiovascular system consists of the large circulation (systemic circulation) and the small circulation (pulmonary circulation). The circulatory system supplies the tissues and organs with vital oxygen.
In addition, the system transports the waste materials of the body, such. B. from carbon dioxide. The two circuits are interdependent and circulate simultaneously. The right half of the heart pumps the oxygen-poor blood from the systemic circulation to the lungs.
Thereafter, the oxygen-enriched blood is pumped back to the heart, whereby the blood makes its way through the left half of the heart into the systemic circulation.
In this way, all other organs are adequately supplied. Between 4 and 7 liters of blood are pumped through the adult body every minute.
The pulmonary circulation or small circuit:
The oxygen-poor blood that comes out of the body, accumulates in the right atrium and passes through the tricuspid valve in the right ventricle.
The pulmonary valve pumps the blood into the pulmonary artery and ultimately to the lungs. There, the blood releases the carbon dioxide and absorbs oxygen.
The oxygen-enriched blood is then transported through the pulmonary vein into the left atrium. The meeting place of the two circuits is at the heart!
The systemic circulation or big circuit:
The systemic circulation starts in the left atrium. The oxygen-rich blood passes through the mitral valve into the left ventricle. It then pumps it through the aortic valve into the main artery (aorta).
So it is passed through arterioles and arteries throughout the body. Arterioli are blood vessels leading away from the heart.
The entire organism and all organs are permanently supplied with oxygen by this process. At the same time, the blood also absorbs the waste substances from the organs. The depleted (depleted) blood is returned to the right atrium via the blood vessels (veins) leading to the heart, and the circulation begins again.