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Deoxygenated blood returns to the heart in the right atrium by the superior vena cava and the inferior vena cava. From the right atrium the blood flows through a valve and into the right ventricle. The ventricle ejects the deoxygenated blood into the lungs by the pulmonary artery (only artery in the body carrying deoxygenated blood). Once the blood is in the lungs, it is distributed to capillary beds which allow very large surface area for deoxygenated blood to become oxygenated from the air we inhale (side note: only about 30% of atmospheric air is oxygen - the rest is mostly nitrogen). as the blood becomes freshly oxygenated it also releases carbon dioxide (metabolic by product) which you exhale. the oxygenated blood returns to the left atrium of the heart by the pulmonary vein (only vein to carry oxygenated blood). from the left atrium the blood passes through a valve and into the stronger of the two ventricles - the left ventricle. the left ventricle then forcefully ejects oxygenated blood out to the body by the aorta.

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What is another name for the circulation of blood from lungs to heart to body?

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What is the circulation called when it travels from the heart to the lungs and back?

Pulmonary circulation is the movement of blood from the heart, to the lungs, and back.


What is the process by which blood moves between the heart and the lungs?

The process by which blood moves between the heart and the lungs is called pulmonary circulation. Deoxygenated blood is pumped from the heart to the lungs through the pulmonary arteries, where it picks up oxygen and releases carbon dioxide. The oxygenated blood then returns to the heart via the pulmonary veins.


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the pulmonary circulation begins in the right atrium and ends at the aorta.


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The arteries of the pulmonary circulation differ from those of the systemic circulation in that they carry?

The arteries of the pulmonary circulation differ from those of the systemic circulation in that they carry?


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Where does blood travel to and from during pulmonary circulation?

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