MCAT Question of the Day
    •

    Q:

    		 Double circulation refers to
    		 

    A

    		 flow through the arterial and venous circuits simultaneously

    B

    		 flow into and out of the brain simultaneously

    C

    		 timing of the left ventricle to contract after the left atrium

    D

    		 two circuits of blood flow: to/from the lungs for oxygenation and to/from the rest of the body



    Circulatory System |
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