Stage 3 embryo in vitro that has completed the hatching process. The blastocyst increases in size substantially once free of the zona pellucida.
From: Veeck and Zaninovic´, 2003. Reproduced with permission of the publisher, Francis and Taylor Group.
Keywords: abembryonic pole, blastocystic cavity (blastocoele), completed hatching process, embryonic pole, hatched blastocyst, hatched embryo, inner cell mass (embryoblast), mural trophoblast, zona pellucida shell
Source: The Virtual Human Embryo.