A mistake?

[shal3]

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Hi, I believe tha answer to the question below is C. however, Kaplan says it D( B and C are correct). But the high hydrostatic pressure is what pushes out fluid not the low osmotic pressure! what do you think?

At the arterial end of a capillary bed, the osmotic
pressure
A. Is greater than the hydrostatic pressure
B. Results in a net outflow of fluid
C. Is less than the hydrostatic pressure
D. Two of the above​

E. None of the above

Thanks

 

[ywatson]

Ah, I remember this question. This is what I think. When osmotic pressure is high (saltier environment), some of fluid would be obsorbed by membrane, so there would be less outflow. When osmotic pressure is low, there is no obsorption, and therefore, more fluid will pushed out by hyd. pressure. Does it make sense? what do you think? In terms of nephron in kidney, higher osmotic pressure is in the proximal convoluted tubule becuase that is where reabsorption occur.

 

[shal3]

yeah that makes, thanks.