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  1. Which parts of the heart receive blood from the lungs?

    2. A.

     Right ventricle
    B.

     Left atrium
    C.

     Left ventricle
    D.

     Right atrium

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    Answer : Option B

    Explanation :

    The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.

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