Scientists have recently unveiled a groundbreaking discovery about the yolk sac, a crucial part of the development process of many vertebrates. Studies have revealed that the yolk sac does much more than just provide nutrition - it also plays a role in the development of the embryo’s circulatory system and its immune system. In addition, the yolk sac may also be involved in the embryo’s growth and development. This is an exciting development, as it may open up new avenues for research and treatment of diseases that affect these important processes. Stay tuned to learn more about the fascinating functions of the yolk sac!

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source: Phys.org