About arteries...is this correct?

Question

Just wanted to see if anyone can help with whether I have the right answers to these questions or not.

1) If the arteries are hardened resulting in blood reaching the capillaries at higher hydrostatic pressure, what effect wold this haveon the overall loss of fluid from the capillaries?

The overall loss of fluid would decrease as the fluid would be moving so fast that the fluid would have less time to pass out.


2) If the vein receiving blood frm a particular capillary was compressed (or partially blocked by a tumour) resulting in raising of the hydrostatic pressure at the venous end of the capillary, how would this effect the overall uptake of fluid by the capillary?

The overall uptake would increase as the fluid moving in the capillary would be moving slow enough that fluid could get back into the capillary.


Thanks in advance!

Answer 1

I think you have it backwards.

I think both conditions will result in greater fluid loss from the capillaries.

Greater hydrostatic pressure will push more fluid into the tissue. A compressed vein wouldn't collect well, again leaving more fluid lost in the tissue.

Answer 2

I agree with the first answer, think about it this way if you increase the pressure you are forcing liquid out like squeezing a tube of toothpaste. In the second case the fluid backs up and has nowhere to go so is pushed out into the tissue.

Answer 3

Um I Have no idea I am Only in sixth grade