Question

18 why does fluid leave capillaries at their arteriolar end and enter at the venular end? multiple choice hydrostatic pressure is higher than osmotic pressure at the arteriolar end and lower at the venular end. hydrostatic pressure is lower than osmotic pressure at the arteriolar end and higher at the venular end

Explanation:

At the arteriolar end of capillaries, hydrostatic pressure (blood - pressure exerted by blood against the capillary wall) is higher than colloid osmotic pressure (pressure due to proteins in plasma), causing fluid to leave. At the venular end, hydrostatic pressure drops and is lower than colloid osmotic pressure, so fluid enters.

Answer:

Hydrostatic pressure is higher than osmotic pressure at the arteriolar end and lower at the venular end.