MCAT Question of the Day
    •

    Q:

    		 The vena cavae contain:
    		 

    A

    		 oxygenated blood leaving the heart.

    B

    		 deoxygenated blood leaving the heart.

    C

    		 oxygenated blood returning to the heart.

    D

    		 deoxygenated blood returning to the heart.



    Circulatory System |
    Subscribe


    Is Your Score Stuck?

    We can teach you how to crush the MCAT!

    Learn More