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. 2022 Jul 18;13:956244. doi: 10.3389/fphys.2022.956244

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Copyright © 2022 Liu, Zeng, Liu, Wu and Song.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The process of organogenesis. The physiological process of human embryonic development begins with the oosperm, which divides several times to form the Morulaand then develops into the blastocyst. The inner cell mass within it serves as the early embryonic stem cells and has developmental omnipotence. The ectoderm, mesoderm and endoderm form various tissues and organs, this process is called organogenesis. The study of the process of organogenesis contributes to the directed construction of related organoids. AF, anterior foregut; PF, posterior foregut; M, midgut.