Zygote and gastrulation Flashcards
1
Q
what makes up the trilaminar disc?
A
endoderm
mesoderm
ectoderm
2
Q
what is developed after gastrulation is complete?
what are their current structures in the embryo?
A
nervous system (neural plate)
vertebrae (notochord)
3
Q
what does the oropharyngeal cavity form?
A
future oral cavity
4
Q
what does the cloacal membrane form?
A
future urogenital-anal openings
5
Q
what cell layer forms the placenta?
A
trophoblast
6
Q
when does the amniotic sac start forming?
A
close to time of implantation, day 8
when bilaminar disc forms
7
Q
A
