Question

The ciliated epithelium cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in?
A.Bile duct and bronchioles
B.Fallopian tube and pancreatic duct
C.Eustachian tube and salivary duct
D.Bronchioles and fallopian tubes

Answer 1

Hint: Ciliated epithelium facilitates the movement of particles in a wave-like motion.The bile duct has cuboidal epithelium. This epithelium has cells that are of equal length, height, and width. They have a central nucleus and their primary function is the secretion and absorption of substances

Complete answer:
Bronchioles and Fallopian tubes are lined with ciliated epithelium. This is to facilitate the movement of particles or mucus in a specific direction in a wave-like motion
Cilia are hair-like structures that are present on top of a tissue/ cell. They wave back and forth to help substances move across the cell/ tissue surface. The epithelium is a tissue type. It is typically a very thin tissue that covers various structures in the body of an organism
Ciliated epithelium lines the trachea, bronchi, and bronchioles of the lungs, parts of the nasal cavities, the uterus, and the oviduct of the female genital tract. It is also seen in the vas deferens and epididymis of the male genital tract

Therefore, Option D Bronchioles and fallopian tubes is correct.

Note:
-The eustachian tube is lined by ciliated columnar epithelium near the tympanic membrane and by pseudostratified epithelium near the pharynx. The pseudostratified epithelium is a single-layered epithelium that gives a double-layered appearance due to its cells of unequal heights.
-The salivary ducts are also made of cuboidal epithelium. They help in changing the concentration of the saliva produced by the salivary glands.
-Stratified epithelium is a type of epithelium that is several layered. Their primary function is protection to the soft/ visceral structures. They can be of keratinized or non-keratinized types. Keratinized stratified epithelium is present in the skin, non-keratinized stratified squamous epithelium is present in the oral cavity.