Which kind of pressure is a force within the capillary beds that tends to pull water into the capillaries?
a. oncotic c. hydrostatic
b. osmotic d. filtration
B
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A Incorrect: Oncotic pressure, which is caused by the amount of plasma proteins in the vascular system, holds fluids in the capillaries.
B Correct: Osmotic pressure is a force within the capillary beds that tends to pull water into the capillaries.
C Incorrect: Hydrostatic pressure is the pressure of blood against the capillary walls generated by the contraction of the heart.
D Incorrect: Filtration is the movement of a solute based on the force exerted by the weight of the solution.
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