What is the Difference Between Seminiferous Tubules and Leydig Cells?

Seminiferous tubules and Leydig cells are both components of the male reproductive system, specifically found in the testis. They have distinct functions and structures:

Seminiferous Tubules:

• Large coiled tubes that cover 90% of the testis.
• Chief site for the production of sperm.
• Contain Sertoli cells, which nourish the developing sperm cells.
• Spermatogenic cells differentiate by meiosis to produce sperm.

Leydig Cells:

• Epithelial cells responsible for secreting androgens, primarily testosterone.
• Found in the interstitial space of the testis, adjacent to the seminiferous tubules.
• Present in clusters of up to ten cells around seminiferous tubules.
• Polyhedral cells with eosinophilic, non-granular cytoplasm, large round nuclei, and prominent nucleoli.

In summary, seminiferous tubules are the site for sperm production, while Leydig cells are responsible for secreting androgens. Both cell types play crucial roles in the male reproductive system and are essential for spermatogenesis.

Comparative Table: Seminiferous Tubules vs Leydig Cells

Here is a table comparing the differences between seminiferous tubules and Leydig cells:

Seminiferous tubules are large coiled tubes that make up 90% of the testis and are the chief site for sperm production. Leydig cells, on the other hand, are epithelial cells found in the interstitial spaces of the testis, and their main function is to secrete the male sex hormone, testosterone.