| Term Name: | extraembryonic structure |
|---|---|
| Synonyms: | extraembryonic structures |
| Definition: | Anatomical structure that is contiguous with the embryo and is comprised of portions of tissue or cells that will not contribute to the embryo. |
| Appears at: | Zygote:1-cell (0.0h-0.75h) |
| Evident until: | Pharyngula:High-pec (42.0h-48.0h) |
| Ontology: | Anatomy Ontology [ZFA:0000020] |
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