Early Placental Development
Embryology
>
Early Embryonic Development
>
Implantation & Placental Formation
Q. The primary villi comprise:
a
Cytotrophoblast cells invading the syntiotrophoblast
b
Syntiotrophoblast cells within the mesoderm
c
Spaces within the extraembryonic mesoderm
d
Cells from the hypoblast
e
None of the above
Log In
or
Start Your Free Trial
to view the answer.