MCAT Question of the Day
    •

    Q:

    		 Which of the following statements regarding capillaries is false?
    		 

    A

    		 Capillaries are the smallest blood vessels in the body

    B

    		 Capillary walls are 1 cell thick

    C

    		 Capillaries dead end, returning deoxygenated blood to their original arterioles which lead directly to venules

    D

    		 Nonpolar molecules such as gasses diffuse through capillary walls without special transport mechanisms.



    Circulatory System |
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