[Reviews of the Circulatory System]

	left atrium	right atrium	left ventricle	right ventricle
A.	oxygenated	oxygenated	deoxygenated	deoxygenated
B.	deoxygenated	deoxygenated	oxygenated	oxygenated
C.	oxygenated	deoxygenated	oxygenated	deoxygenated
D.	deoxygenated	oxygenated	deoxygenated	oxygenated

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