Question

Describe the difference between hydrostatic pressure and colloid osmotic pressure (also known as oncotic pressure) in relation to transport of fluids across a capillary membrane.

a. Hydrostatic pressure involves the force exerted by the fluid itself, pushing against the capillary walls.
b. Colloid osmotic pressure results from the presence of proteins in the blood, drawing fluid back into the capillaries.
c. Hydrostatic pressure is primarily responsible for fluid reabsorption, while colloid osmotic pressure promotes fluid filtration.
d. Colloid osmotic pressure is associated with fluid movement towards the interstitial space, whereas hydrostatic pressure favors fluid entry into the capillaries.

Answer 1

Hydrostatic pressure involves the force exerted by the fluid pushing against capillary walls, while colloid osmotic pressure results from proteins drawing fluid back into the capillaries.

Step-by-step explanation:

Hydrostatic pressure involves the force exerted by the fluid itself, pushing against the capillary walls. On the other hand, colloid osmotic pressure, also known as oncotic pressure, results from the presence of proteins in the blood, drawing fluid back into the capillaries. Hydrostatic pressure is primarily responsible for fluid reabsorption, while colloid osmotic pressure promotes fluid filtration. Colloid osmotic pressure is associated with fluid movement towards the interstitial space, whereas hydrostatic pressure favors fluid entry into the capillaries.