Question

question 33
1.67 pts
which statement is accurate?
filtration dominates at the venous end of a capillary bed, and is driven by osmotic pressure.
filtration dominates at the venous end of a capillary bed, and is driven by hydrostatic pressure.
filtration dominates at the arterial end of a capillary bed, and is driven by osmotic pressure.
filtration dominates at the arterial end of a capillary bed, and is driven by hydrostatic pressure.

Explanation:

At the arterial end of a capillary bed, hydrostatic pressure is higher than colloid - osmotic pressure, so filtration dominates and is driven by hydrostatic pressure. At the venous end, colloid - osmotic pressure is higher than hydrostatic pressure, and reabsorption occurs.

Answer:

Filtration dominates at the arterial end of a capillary bed, and is driven by hydrostatic pressure.