Where are the 'Stem Cells' of the small intestine located, which are responsible for the constant renewal of the epithelial lining every 3 to 5 days?
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Correct answer: In the Crypts of Lieberkühn
Intestinal stem cells reside in the base of the intestinal crypts (Crypts of Lieberkühn). As they divide, new cells migrate upward toward the villus tips, differentiating into enterocytes, goblet cells, and endocrine cells along the way.
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