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Atrium

One of the two upper chambers of the heart in which blood collects before passing to the ventricles.

User Yishaiz
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2 Answers

11 votes
11 votes

Answer:

right and left atria

Step-by-step explanation:

User Hakan Cakirkan
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28 votes
28 votes

Answer:

The 2 upper chambers are the atria. They receive and collect blood. The 2 lower chambers are the ventricles. They pump blood to other parts of your body.

Step-by-step explanation:

User Aokozlov
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