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SlideshowReport

The mammalian heart and the route blood takes through it.

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Description
The figure shows the major blood vessels entering and leaving the heart, the locations of the valves, and the direction of blood flow through the chambers of the heart. Oxygenated blood is shown in red, deoxygenated in blue. Note that the pulmonary veins are red because they return blood from the lungs, while veins from the systemic circulation are blue.
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