The pressure that draws fluid into capillaries since blood has a higher solute concentration than interstitial fluid is known as ________.
A) blood pressure
B) systolic pressure
C) osmotic pressure
D) diastolic pressure

Question

Quizplus · Accepted Answer

Osmotic pressure is the pressure exerted by the movement of water through a semipermeable membrane from an area of low concentration of solutes to an area of high concentration of solutes. In capillaries, this pressure draws fluid into the capillaries from the interstitial fluid because blood has a higher solute concentration than the interstitial fluid. Blood pressure (A) is the force exerted by blood against the walls of blood vessels, systolic pressure (B) is the highest pressure reached during contraction of the heart, and diastolic pressure (D) is the lowest pressure reached during relaxation of the heart. While these pressures are important in regulating blood flow and blood vessel health, they are not directly related to the movement of fluid into capillaries.

The Pressure That Draws Fluid into Capillaries Since Blood Has