MCAT Question of the Day


  • Q:

    There is a net loss of fluids from the blood vessels that pass through the capillaries. Osmotic pressure drives fluids into the blood while hydrostatic pressure (blood pressure) drives fluids out of the blood. There is an initial loss of fluids at the beginning of the capillaries, with less loss towards the end of the capillaries. Which of the following is true?

     

    A

    The difference between the osmotic pressure and hydrostatic pressure at the capillaries closer to the arteries is greater than the pressure difference in the capillaries closer to the veins.

    B

    There is gain of fluid in the capillaries closer to the arteries and loss of fluid in the capillaries closer to the veins.

    C

    The pressure in the capillaries is lower than the blood pressure in the veins.

    D

    The difference between the osmotic pressure and hydrostatic pressure at the capillaries closer to the arteries is less than the pressure difference in the capillaries closer to the veins.



    Circulatory System |
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