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The ciliated columnar epithelial cells in humans are known to occur in
A
Fallopian tubes and urethra
B
Eustachian tube and stomach lining
C
Bronchioles and Fallopian tubes
D
Bile duct and oesophagus
Detailed Solution
When columnar or cuboidal cells bear cilia on their free surface, the tissue is called ciliated epithelium.
Its function is to move particles or mucus in a specific direction over the epithelium.
It is mainly present on the inner surface of hollow organs like the bronchioles and the Fallopian tubes.
The stomach is lined by non-ciliated columnar epithelium, the oesophagus by stratified squamous epithelium, and the urethra and bile duct are not lined by ciliated columnar cells.
Hence ciliated columnar epithelial cells occur in bronchioles and Fallopian tubes.
Its function is to move particles or mucus in a specific direction over the epithelium.
It is mainly present on the inner surface of hollow organs like the bronchioles and the Fallopian tubes.
The stomach is lined by non-ciliated columnar epithelium, the oesophagus by stratified squamous epithelium, and the urethra and bile duct are not lined by ciliated columnar cells.
Hence ciliated columnar epithelial cells occur in bronchioles and Fallopian tubes.