Cornea transplant in humans is almost never r | vedclass

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(B) The cornea is an avascular structure,meaning it has no direct blood supply. Because the immune system's cells (such as $T$-lymphocytes) reach tiss

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it has no blood supply

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(B) The cornea is an avascular structure,meaning it has no direct blood supply. Because the immune system's cells (such as $T$-lymphocytes) reach tissues primarily through the bloodstream,the lack of blood vessels in the cornea creates an 'immune privilege' zone. This prevents the immune system from easily recognizing and attacking the transplanted corneal tissue,making rejection extremely rare.

Cornea transplant in humans is almost never rejected. This is because

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