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The sperm originate in gonial cells (spermatogonia) in the walls of seminiferous tubules.

精子产细胞(精原细胞)。

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Each one is divided into about 250 sections, called lobules, which are loaded with tightly-coiled seminiferous tubules.

每一个都被成大约 250 个为小叶,其中装载着密盘绕的精小管。

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Crash Course 理学篇

Now, obviously, if sperm are going to get anything accomplished, they have to leave the seminiferous tubules that made them.

现在,很明显,如果精子想要完成任何事情,它们必须离开制造它们的精小管。

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