Question

Ciliated epithelial cells are present in_____________
A) Buccal cavity of Frog
B) Stomach of Frog
C) Pancreatic duct of Pancreas
D) None of these

Answer 1

Hint:Cilia is a hair-like structure that is present on the top of a tissue. It waves back and forth to move things. Epithelium is a type of tissue. The ciliated epithelium arises from the epithelial membrane. This is a very thin tissue that covers structures.

Complete answer:
The microscopical characteristics of epithelial cells are: the cell outline can be clearly seen, and the nucleus is large and spherical or ellipsoidal. Large amount of cytoplasm is present in the cell and often a lot of granules.
Functions of epithelium may be that of protective, absorptive, or secretory. It may produce special outgrowths like hairs, nails, horns on animals, and process chemical material like keratin, in which case the whole cell becomes modified. It may also contain fat droplets, granules of different kinds, mucin, protein, watery granules, or glycogen.
In an absorbing cell, granules of material are absorbed. A secreting cell forming specific substances stores them until they are utilized, e.g., fat, in sebaceous and mammary glands, enzymes in salivary and gastric glands, and various excretory substances in the renal epithelium of the kidney.
The cells forming an epithelial membrane are of different types: columnar, cubical, squamous (flattened), irregular, or ciliated (i.e., with hairlike projections). The membranes created by these cells may be only one cell thick, like in the major part of the gastrointestinal tract, or consist of several layers, as in the epidermis of the skin.
The ciliated epithelium lines the trachea, bronchi of the lungs, some parts of the nasal cavities, the uterus and oviduct of the female, and the vas deferens and epididymis of the male. A single projection from the exposed surface of a cell, usually large and long, is called a flagellum. Flagellated cells are common on the surface of many simple animals.
In frogs, the buccal cavity is lined by ciliated epithelium cells.

Hence, the correct option is A, ‘Buccal cavity of frog’.

Note:Ciliated columnar epithelium moves mucus and other substances via cilia. They are the major target of infection for "common cold viruses" such as coronaviruses, rhinoviruses, and influenza virus. These viruses may kill the ciliated cells or stop the cilia beating. In such cases, mucus builds up and forms the site for secondary bacterial infections.