The_Great_Sperm_race《精子生命大赛跑》
简述
应用科学类纪录片，Channel 4 频道 2009 年出品。
封面
影片信息
官方网站
http://www.channel4.com/programmes/the-great-sperm-race
影片原始规格:
- 中文片名 ：精子生命大赛跑
- 中文系列名：
- 英文片名 ：The Great Sperm race
- 英文系列名：
- 电视台 ：Channel 4
- 地区 ：英国
- 语言 ：英语
- 时长 ：约 56 分钟
- 版本 ：TV
- 发行时间 ：2009
影片内容介绍
剧情简介
Spermatogenesis (Spermatogenesis) - the formation of mature sperm in the convoluted seminal tubules of the testes. Located at the basement membrane of spermatogonia undergo several mitotic divisions. The total number of spermatozoa in the egg is about 1 billion. There are two main categories of spermatogonia: A and B. Some A spermatogonia, which divide mitotically, remain stem, ie retain the ability to divide and maintain their population. Others differentiate into spermatogonia B, which are divided mitotically, differentiated in spermatocytes of the first order and enter into meiosis. In the process of meiosis are formed spermatocytes II of the order of which are formed in meiosis II gaploidnys spermatids. Latest in spermiogeneza transformed into mature sperm. The whole process of formation of sperm takes 70-80 days…
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参考信息
相关的纪录片
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相关领域
| 内容 应用科学类 | 医药 | 人体生理学 |
|---|
网路消息
- 百度百科：精子
http://baike.baidu.com/view/21222.htm
Category:片名 Category:Channel 4 Category:2009 Category:4. 应用科学类 Category:4.1 医药 Category:4.13 人体生理学 Category:缺翻译