# 18 Which statement is TRUE about the heart valves and blood flow through the heart?

A. Oxygenated blood enters the left atrium and is pushed through the bicuspid valve to the left ventricle.

B. Deoxygenated blood enters the left atrium and is pushed through the tricuspid valve to the left ventricle.

C. Oxygenated blood enters the right atrium and is pushed through the bicuspid valve to the right ventricle.

D. Deoxygenated blood enters the right atrium and is pushed through the semilunar valve to the right ventricle​

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