Amnion是一个英语单词，意思是“羊膜”。
以下是一篇以Amnion为关键词的英文范文：
The Amnion: An Important Embryonic Structure in Mammalian Development
The amnion is an important embryonic structure in mammalian development. It is a thin, tough, and transparent membrane that covers the embryo and provides it with protection and nourishment.
During early development, the amnion plays a crucial role in maintaining the stability of the embryo and regulating its growth and development. It secretes various factors that promote cell growth and differentiation, and regulates the exchange of gases and nutrients between the embryo and its environment.
Moreover, the amnion is also involved in the development of many organs and tissues in the embryo, such as the lungs, heart, and digestive system. It provides a cushion for organ development and helps to shape the organs through its interactions with other tissues and cells.
Therefore, the amnion is an essential part of the embryonic environment that contributes to the normal development of the embryo and its organs and tissues. Understanding the role of the amnion in development is crucial for understanding human health and disease, as well as for developing new therapeutic strategies for treating developmental disorders and birth defects.
amnion是一个英语单词，意思是羊膜。
以下是一些有关amnion的英文范文信息：
- 在妊娠早期，滋养层细胞继续增殖，而内细胞团和外胚层细胞将分化为胎儿的各种组织。羊膜是一种由滋养层衍生出的组织，它具有保护胎儿和维持胎儿正常发育的作用。
以上内容仅供参考，建议到相关网站或询问专业人士以获取更准确的信息。
amnion是一个英语单词，意思是“羊膜”。
在英文范文中的变化一般是指单词的词性、时态、语态等的变化，例如：一般现在时变为一般过去时，主动语态变为被动语态等。
需要注意的是，amnion的用法可能因语境而异，需要更多的信息才能准确理解。