VASCULAR
CAPILLARIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The fluids leave the capillaries at the arterial end because the ____
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net filtration pressure of the blood is higher at the arterial end than it is at the venous end
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net filtration pressure of the blood is higher at the venous end than it is at the arterial end
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net filtration pressure of the interstitial fluid is higher at the arterial end than it is at the venous end
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net filtration pressure of the interstitial fluid is higher at the venous end than it is at the arterial end
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Explanation:
Detailed explanation-1: -Net filtration occurs near the arterial end of the capillary since capillary hydrostatic pressure (CHP) is greater than blood colloidal osmotic pressure (BCOP). There is no net movement of fluid near the midpoint since CHP = BCOP. Net reabsorption occurs near the venous end since BCOP is greater than CHP.
Detailed explanation-2: -The net filtration pressure (NFP) represents the interaction of the hydrostatic and osmotic pressures, driving fluid out of the capillary. It is equal to the difference between the CHP and the BCOP.
Detailed explanation-3: -As blood moves from the arterial end to the venous end of a capillary, net filtration pressure: decreases as blood hydrostatic pressure decreases.
There is 1 question to complete.