Seminiferous tubules

Definition

Seminiferous tubules are coiled structures located within the testes where spermatogenesis occurs. They play a crucial role in the production and maturation of sperm cells.

5 Must Know Facts For Your Next Test

1. Seminiferous tubules are lined with Sertoli cells, which support and nourish developing sperm cells.
2. These tubules are the site of meiosis for the production of haploid spermatozoa.
3. The seminiferous tubules connect to the rete testis, which then leads to the epididymis for further sperm maturation.
4. Leydig cells, found in the interstitial space around seminiferous tubules, produce testosterone necessary for spermatogenesis.
5. Each testis contains hundreds of meters of seminiferous tubules.

Review Questions

• What is the primary function of seminiferous tubules?
• Which type of cell within the seminiferous tubules supports developing sperm cells?
• How do Leydig cells contribute to the function of seminiferous tubules?

Related terms

Sertoli Cells: Specialized cells within seminiferous tubules that provide nourishment and support to developing sperm cells

Leydig Cells: Cells located in the interstitial tissue surrounding seminiferous tubules responsible for producing testosterone

Spermatogenesis:

The process by which male gametes or spermatozoa are produced within the seminiferous tubules