Blood circulation

Yes, this is the human heart. Bronchial circulation (feeding the lungs themselves) does indeed dump deoxygenated blood into the left atrium. I know that this is not a significant issue, it just makes me curious. I ...

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Why do CO2 levels not rise as fast as 02 levels fall in arterial blood?? Does it have to do with differences in partial pressure gradients for ... is decreased, as would be the case in unloading of O2 in systemic circulation? Please help me clarify. Thanks

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Deoxygenated blood is being pumped into the left atrium which contains oxygenated blood. Mixing deoxygenated ... doesn't seem logical. I know that this amount of deoxygenated blood from the bronchial circulation is a small portion of the total systemic return, but I want to know why this ...

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... for this answer and I am having no luck. Why does the bronchial circulation dump deoxygenated blood into the left atrium? Thanks. Hope you can help.

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... heart activity, contraction and relaxation. In the contraction period, blood is pumped out of heart to lungs or systemic circulation, while in relaxation period, blood enter the heart. The time when the heart contracts ...

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