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

Question

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

Quizplus · Accepted Answer

Whereas many epithelial barriers such as the skin and the lining of the mouth, vagina, and large intestine are densely populated by normal flora, others, including the lining of the lower lung and the bladder, are normally kept nearly sterile.

Indicate Whether the Epithelium in Each of the Following Organs