Germinal epithelium

Germinal epithelium is a type of epithelium that covers the ovary in female mammals and the seminiferous tubules in male mammals. It is named for its role in producing germ cells, which are the precursors to egg cells in females and sperm cells in males.

Structure

The germinal epithelium is a single layer of cuboidal cells that covers the surface of the ovary. In males, it lines the seminiferous tubules and is composed of Sertoli cells and spermatogonia. The Sertoli cells provide nourishment and support for the developing sperm cells, while the spermatogonia are the germ cells that will eventually become sperm.

Function

The primary function of the germinal epithelium is the production of germ cells. In females, these germ cells develop into egg cells, or oocytes, which are released during ovulation. In males, the germ cells develop into sperm cells, or spermatocytes, which are released during ejaculation.

Clinical significance

Damage or disease of the germinal epithelium can lead to infertility. In females, conditions such as polycystic ovary syndrome (PCOS) can disrupt the normal functioning of the germinal epithelium, leading to irregular ovulation or failure to ovulate. In males, conditions such as Klinefelter syndrome can affect the germinal epithelium, leading to low sperm count or poor sperm quality.

See also

• Epithelium
• Ovary
• Seminiferous tubules
• Sertoli cells
• Spermatogonia