A blastocyst is an embryo 5 to 7 days old, following fertilization. It consists of a central cavity and two distinct types of cells, the trophoblast and the embryonic button. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / QA International |
Bildgröße: | 2642 px × 2700 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |