Stage 9 (5 hrs 15 min)
Late morula stage
Drown by T. Iwamatsu
(Abbr. od: oil droplet)Ê
Stage 9 (5 hrs 15 min) Late morula stage:
The blastodermal cells (256-512 blastomeres) are smaller than those of the previous stage and the number of marginal cells (30-40 um) has increased. The blastodermal cells (central region, 25-35 um in diameter) now form 4-5 layers.