The most important force causing net outward water flow across capillary walls is . The most important force causing net outward water flow across capillary walls is . hydrostatic pressure of capillary blood intracellular hydrostatic pressure hydrostatic pressure of interstitial fluid osmotic pressure of plasma proteins

Hydrostatic pressure of capillary blood

Explanation:

Hydrostatic pressure refers to the pressure applied by the fluid flowing through the structure with confined boundaries on the walls of the structure.

In the given case, the hydrostatic pressure of the capillary blood is the pressure applied on the capillary walls by the blood as it flows through it.

When the blood moves through the capillary, the blood exit out of the pores due to this hydrostatic pressure and when the blood moves through these capillary, the pressure decreases as the blood is moved out that is from the arterial side to the venous.

Thus, the selected option is correct.

c.           is the correct answer