The ciliated columnar epithelial cells in humans are known to occur in:
Fallopian tubes
Stomach lining
Bronchioles
Bile duct
A
Fallopian tubes
B
Stomach lining
C
Bronchioles
D
Bile duct
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Solution
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Ciliated columnar epithelial cells are found mainly in the tracheal and bronchial regions of the respiratory system.
In the respiratory system, it is interspersed with goblet cells that secrete mucous to form a mucosal layer apical to the epithelial layer.
The continuous beating action of epithelial cilia works in tandem with goblet cells to propel mucus away from the lungs and thus prevents particulate matter from causing infection.
Thus, the correct answer is option C.
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