Spermaries comprise many seminiferous tubules.

精巢由许多精小管组成；

The development of the male germ cells in different seminiferous tubules was different.

不同精小管内生殖细胞的发育是不同步的.

Longitudinal section of a testicle showing the seminiferous tubules and the convoluted epididymis.

睾丸纵切面,示生精小管和迂回蟠曲的附睾.

Longitudinal section of a testicle showing the seminiferous tubules and the convoluted epididymis .

睾丸纵切面，示生精小管和迂回蟠曲的附睾。

LEYDIG CELLS: Androgen ( testosterone ) producing cells lying outside the seminiferous tubules within the testes.

位于睾丸中曲细精管的外部,分泌雄性激素.