Question

According to the starling equation, what direction would the net fluid movement be, if the hydrostatic pressures, were equal to 20 mm and the oncotic pressures were 20 mm.

a. no net movement into or out of the glomerular capillary

b. out of the glomerular capillary

c. into the glomerular capillary

d. none of the options are correct estimations

e. All of the options are correct

Answer 1

Ans- a. no net movement into or out of the glomerular capillary

Hydrostatic pressure is the pressure pushing the fluid out, favouring filtration, which is high at the arterial end of the capillary. Osmotic pressure or oncotic pressure is the pressure pushing the fluid in favouring absorption, which is high at the venous end of the capillary.

Here oncotic pressure is equal to the hydrostatic pressure, which means there will no net movement of fluid, neither in nor out.