Question

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

Explanation:

Fluid movement across capillaries is driven by the balance between hydrostatic and osmotic pressures. At the arteriolar end, blood pressure (hydrostatic pressure) is high, exceeding the osmotic pressure, causing fluid to leave. At the venular end, hydrostatic pressure drops below the osmotic pressure, drawing fluid back in.

Answer:

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