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    Tissue oedema could result from:

    A. a fall in capillary hydrostatic pressure.
    B. a fall in interstitial hydrostatic pressure.
    C. a fall in arteriolar resistance.
    D. either 2 or 3.
    E. none of the above.

    What do you guys think? I got D.
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    A fall in interstitial fluid pressure definitely promotes filtration from capillaries (which also eliminates the possibility of option E)

    A fall in arteriolar resistance reduces arteriolar pressure which decreases filtration, isn't it?

    So I'll go with B).
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    Yeah I had B, but the answer was apparently C; maybe an error as a few have occured.

    Although arterioles can refer to the arterioles that come immediately before the capillary. Reduced resistance, increased flow, increased hydrostatic pressure?

    That's why I hate cardiovascular, anything can make logical sense.
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    Surely this kind of stuff is easy?
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    Having looked through my notes I think you are right...

    I've got that constricting arterioles increases the resistance and downstream blood (capillaries) loose pressure
    so vice versa.
 
 
 
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