5) define atrium
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Answer:
The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart. ... The right atrium receives deoxygenated blood from systemic veins; the left atrium receives oxygenated blood from the pulmonary veins.
Answer:
the central room of a Roman house. 2 plural usually atriums. a : a rectangular open patio around which a house is built. b : a many-storied court in a building (such as a hotel) usually with a skylight.
Explanation:
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