In the lungs, the carbon dioxide from oxygen-poor blood ("used" blood) is released from the body through exhalation and is replaced by oxygen through inhalation, turning the oxygen-poor blood into oxygen-rich blood.
Systemic circulation is the flow of blood from the heart to all parts of the body and back to the heart, while pulmonary circulation is the flow of blood between the heart and the lungs. Systemic circulation delivers oxygen and nutrients to the body's tissues, while pulmonary circulation is responsible for oxygenating the blood and removing carbon dioxide.
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The respiratory circulation is also referred to as the pulmonary circulation or the pulmonary system. It is responsible for the circulation of blood between the heart and the lungs, where carbon dioxide is exchanged for oxygen.
Lungs.
The pulmonary circulation works closely with the respiratory system at the alveoli. There, capillaries are in close proximity to the air sacs, and gases are exchanged at this point.
The pulmonary circulation loop is responsible for transporting deoxygenated blood from the right side of the heart to the lungs and returning oxygenated blood back to the left side of the heart. When blood reaches the lungs, carbon dioxide is exchanged for oxygen through the alveoli. This process ensures that the blood is oxygen-rich before it circulates to the rest of the body. Essentially, pulmonary circulation plays a crucial role in gas exchange and maintaining the body's oxygen levels.
Alveoli
Systemic circulation
When the right side of the heart pumps oxygen-poor blood to the lungs, where carbon dioxide is exchanged for oxygen is referred to as pulmonary circulation.
Pulmonary circulation is the process by which blood is pumped from the heart to the lungs and back again to pick up oxygen and release carbon dioxide. In the lungs, carbon dioxide is exchanged for oxygen through the alveoli in the respiratory system. This oxygenated blood then returns to the heart to be circulated to the rest of the body.
The four routes of circulation in the body are pulmonary circulation (heart to lungs and back), systemic circulation (heart to body and back), coronary circulation (heart's blood supply), and portal circulation (digestive organs to liver and back).
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