Indicate Whether the Epithelium in Each of the Following Organs

question 8

Short Answer

Indicate whether the epithelium in each of the following organs is (Y) or is not (N) kept almost sterile in a healthy human. Your answer would be a four-letter string composed of letters Y and N only, e.g. YYYY.
( ) Bladder
( ) Cervix
( ) Lower lung
( ) Colon

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