Embryo 8020 - Stage 5a-1
Fig. 2. Hertig and Rock, 1945.
A general low-power view of tissues at the implantation site of the ovum. The endometrium, in the 22nd day of the menstrual cycle, shows marked physiologic edema. The glands are actively secretory except in their basal part. The superficial position of the ovum is evident at the top of the picture.
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