EXCRETORY SYSTEM
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It keeps the dialysis fluid moving through the dialyser.
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It keeps the blood flowing through the dialyser.
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It keeps the dialysis fluid moving through the dialyser and at a higher pressure than the blood.
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It keeps the blood moving through the dialyser and at a higher pressure than the dialysis fluid.
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Detailed explanation-1: -The dialysis machine has a blood pump that keeps the blood flowing by creating a pumping action on the blood tubes that carry the blood from the body to the dialyzer and back to the body. The dialysis machine also has many safety detection features.
Detailed explanation-2: -Blood tubing carries your blood from your access to the dialyzer. The blood tubing is threaded through the blood pump. You’ll see the blood pump turning in a circular motion. The pumping action of the blood pump pushes your blood through the dialyzer and back into your body.
Detailed explanation-3: -The blood and dialysis fluid move in opposite directions across the membrane (a counter current system ) in order to maintain concentration gradients all the way along. The clean blood is returned to the patient and the waste dialysis fluid is disposed of.