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Systemic circulation, in physiology, the circuit of vessels supplying oxygenated blood to and returning deoxygenated blood from the tissues of the body, as distinguished from the pulmonary circulation.
Pulmonary circulation moves blood between the heart and the lungs. It transports deoxygenated blood to the lungs to absorb oxygen and release carbon dioxide. The oxygenated blood then flows back to the heart. Systemic circulation moves blood between the heart and the rest of the body.
Your circulatory system, or cardiovascular system, supplies oxygen and nutrients to your whole body and removes waste through your blood. Your heart pumps blood that flows through your arteries, veins and capillaries.
Systemic circulation is the movement of blood from the heart through the body to provide oxygen and nutrients to the tissues of the body while bringing deoxygenated blood back to the heart. Oxygenated blood enters the left atrium from the pulmonary veins. The blood is then pumped through the mitral valve into the left ventricle.
Your heart and blood vessels make it all happen, and that’s why together they’re known as your circulatory system. The many parts of your circulatory system work together like a top-notch delivery service to keep blood moving through your body on schedule.
The systemic circulation is a circuit loop that delivers oxygenated blood from the left heart to the rest of the body, and returns deoxygenated blood back to the right heart via large veins known as the venae cavae. The systemic circulation can also be defined as two parts – a macrocirculation and a microcirculation.
Systole refers to when the ventricles of the heart simultaneously contract, diastole is when the ventricles relax. During systole, blood is forcibly pumped out of the ventricles into the outflow tracts of their corresponding circulation. The atria are filling with blood at the same time.
The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.
The cardiovascular system consists of 2 main loops: systemic circulation and pulmonary circulation. Its purpose is to provide adequate blood circulation through the body. Pulmonary circulation allows for the oxygenation of the blood, and systemic circulation allows oxygenated blood and nutrients to reach the rest of the body.
circulatory system, system that transports nutrients, respiratory gases, and metabolic products throughout a living organism, permitting integration among the various tissues.