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Neural Control and Coordination question

2008 · Q11
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Neural Control and Coordination question

2008 · Q11

NEETBiologyNeural Control and CoordinationMCQ+4 / −1
Cornea transplant in humans is almost never rejected. This is because
  1. A
    it is composed of enucleated cells
  2. B
    it is a non-living layer
  3. C
    its cells are least penetrable by bacteria
  4. D
    it has no blood supply.
View written solutionFree

Correct answer: D

Cornea is a transparent portion that forms the anterior one-sixth of the eye ball. The cornea admits and helps to focus light waves as they enter the eye. The cornea is avascular (i.e., has no blood supply). This part of eye absorbs oxygen from the air. The cornea was one of the first organs to be successfully transplanted because it lacks blood vessels.

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