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Question

Blood enters the heart through the two atria and exits through the two ventricles.

A
Left auricle (oxygenated blood) - lungs (deoxygenated blood) - left auricle
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B
Right auricle (deoxygenated blood) - lungs (oxygenated blood) – left auricle
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Solution

The correct option is A Left auricle (oxygenated blood) - lungs (deoxygenated blood) - left auricle
The upper two heart chambers are called atria. Atria are separated by an interatrial septum into the left atrium and the right atrium. The lower two chambers of the heart are called ventricles. Atria receive blood returning to the heart from the body and ventricles pump blood from the heart to the body. So Blood enters the heart through the two atria and exits through the two ventricles.

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