Kidney Transplantation and Immune Rejection — NEET Biology
📚 Practice ConceptKidney transplantation is the ultimate method in the correction of acute renal failures (kidney failure). A functioning kidney is used in transplantation from a donor, preferably a close relative, to minimise its chances of rejection by the immune system of the host. Modern clinical procedures have increased the success rate of such a complicated technique.
Which of the following statements regarding the process of hemodialysis are correct? S1: Blood drained from an artery is pumped into the dialysing unit after adding an anticoagulant like heparin. S2: The dialysing fluid used has a composition identical to plasma, including nitrogenous wastes, to facilitate efficient filtration. S3: The cellophane membrane of the dialysing unit acts as a selectively permeable barrier, allowing passage of molecules based on a concentration gradient. S4: The cleared blood is pumped back to the body through a vein, but only after adding anti-heparin to it. S5: Hemodialysis is considered the ultimate, long-term cure for chronic renal failure, similar to a kidney transplant.
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