Label Key:1. lining of the inner wall of the uterus 2. uterine wall 3. uterine wall reacting to implantation (decidual reaction) 4. blastocyst or embryo 5. blastocyst cavity 6. uterine cavity 7. trophoblast cells lining the blastocyst cavity 8. inner cell mass or embryo proper |
All ages referenced to fertilization, not last menstrual period. |