Question

Germinal epithelium of ovary is composed of?
A. Columnar epithelium.
B. Squamous epithelium.
C. Cuboidal epithelium.
D. Stratified epithelium.

Answer 1

Hint: The germinal epithelium is present in both male and female reproductive organs. This structure is made of tissue layer and gives rise to several follicular cells in the ovary of females along with several other functions.

Complete answer:
The cuboidal epithelium is composed of cube-like large cells that have a centrally placed round nucleus. All the cells of cuboidal epithelium are attached to the basement membrane. The germinal epithelium of the ovary consists of a single layer of cuboidal epithelial cells.
In general, the cuboidal epithelial has the function of a) protection, b) secretion, c) excretion d) absorption. The ovulation process in the ovary leads to certain damages due to ovulatory rupture. The cuboidal epithelial cells proliferate to replace and repair the damage caused due to ovarian rupture. It also enhances the function of the ovum in the ovary.
The main functions of the columnar epithelial cells are secretion and absorption. Neither secretion nor absorption is required to be done by the cells lining the germinal epithelium of the ovary, hence it is an incorrect option. So, Option (a) is incorrect.

The main functions of the squamous epithelial cells are filtration and diffusion. Both functions are not needed to be done by the cells lining the germinal epithelium of the ovary, hence it is an incorrect option. So, Option (b) is incorrect.

The main functions of the stratified epithelial cells are transportation and absorption. Both functions are not needed to be done by the cells lining the germinal epithelium of the ovary, hence it is an incorrect option. So, Option (d) is incorrect.

Thus in the ovary, cuboidal epithelial cells provide protection.

Hence, the correct answer is option (C).

Note: The cuboidal epithelial cells are functionally apt for lining the germinal epithelium of the ovary. It proliferates after the ovulatory rupture, in turn, replacing and repairing the damage caused due to the ruptures.