Which of the following organ(s) has ciliated epithelium?
A
Trachea
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B
Oesophagus
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C
Small intestine
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D
Iris
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Solution
The correct option is A Trachea In humans, the trachea is lined by pseudostratified ciliated mucous epithelium. The mucus keeps the tracheal surface moist. The cilia sweep the bacteria and dust particles and protect the respiratory tract from infection.