9.Implantation of the conceptus at which site in the accompanying dia-
gram of the female reproductive system is most likely to result in excessive,
perhaps fatal, vaginal bleeding immediately prior to parturition?
74 Anatomy, Histology, and Cell Biology
a. A
b. B
c. C
d. D
e. E
10.Cells that form the three primitive germ layers are derived from which
of the following?
a. Cytotrophoblast
b. Epiblast
c. Syncytiotrophoblast
d. Hypoblast
e. Yolk sac
11.In the developing human embryo/fetus, most of the internal organs
begin to form in which month?
a. First
b. Second
c. Fourth
d. Sixth
e. Ninth