VASCULAR
CAPILLARIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Arterial end
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Venous end
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Either A or B
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None of the above
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Detailed explanation-1: -Since overall CHP is higher than BCOP, it is inevitable that more net fluid will exit the capillary through filtration at the arterial end than enters through reabsorption at the venous end.
Detailed explanation-2: -At the venous end of a capillary, the blood pressure is lower than the osmotic pressure and fluid moves into the blood vessel. Blood always moves towards its concentration gradient. It goes from the capillaries to the venules and then to the veins which bring it back to the heart.
Detailed explanation-3: -The water in the tissue fluid moves back into the capillary by osmosis due to a water potential gradient between the tissue fluid and the blood. Any remaining tissue fluid is called lymph which is drained into the lymphatic system and is eventually returned to the blood.