Early stage 3 embryo in vitro at the beginning of cavitation (arrow). Minor decompaction is evident.
From: Veeck and Zaninovic´, 2003. Reproduced with permission of the publisher, Francis and Taylor Group.
Keywords: beginning of cavitation, decompaction, exterior part of blastomere cell membrane, nucleus, subzonal space, zona pellucida
Source: The Virtual Human Embryo.