vitelline vessel

例句：

1. 1. The vitelline vessel is responsible for the transportation of nutrients from the egg to the developing embryo.
   卵黄管负责将营养物质从鸡蛋输送到胚胎发育中。
2. 2.During fertilization, the vitelline vessels expand to facilitate the exchange of genetic material between the sperm and egg.
   在受精过程中，卵黄管扩张以促进精子和卵子之间的遗传物质交换。
3. 3.The vitelline vessels are visible through a microscope during anatomy studies, providing insight into the developmental processes of the embryo.
   通过显微镜观察，卵黄管在解剖学研究中是可见的，这有助于了解胚胎发育过程。