Question

The force that pushes fluid from the capillary into the interstitial space is:

A. the blood pressure.
B. the low pressure in the interstitial fluid.
C. the high pressure in the interstitial fluid.
D. the holes, or fenestrae, in the capillary walls.

Answer 1

The force that pushes fluid from the capillary into the interstitial space is the blood pressure.

Step-by-step explanation:

The force that pushes fluid from the capillary into the interstitial space is the blood pressure. The capillary hydrostatic pressure (CHP), which is also known as capillary blood pressure, is the force that drives fluid out of capillaries and into the tissues. As fluid exits the capillary and moves into tissues, the hydrostatic pressure in the interstitial fluid rises, allowing fluid to move from the capillary into the interstitial space.