Match the terms with their descriptions.

B: __________
A: __________
E: __________
C: __________
D: __________
A. Extraembryonic membrane that develops from the trophoblast and some extraembryonic mesoderm, and forms part of the placenta.
B. The part of the endometrium destined to be a part of the placenta.
C. The part of the endometrium that surrounds the uterine cavity face of the implanted embryo.
D. Protective water-filled sac surrounding the embryo.
E. Site of early blood cell production, and forms part of the gut (digestive tube).