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Results for: 'chorion'

Embryonic development - week 1 and 2

By: HWC, Views: 3075

The first through eighth weeks after fertilization are called the embryonic. Week 1 • Within a day, the zygote begins mitotic cell division (cleavage) forming blastomeres. By the 4th day, the blastomeres have formed a solid ball called a morula. • The morula enters uterine cavity ar...

Cleavage and Implantation Animation

By: HWC, Views: 252

✔ ✔ ✔ Ask questions here: Follow us: ▶ Facebook: ▶ Review Us: Fertilization typically takes pl...

Embryonic development - Week 4

By: HWC, Views: 3038

• The flat trilaminar embryonic disc undergoes embryonic folding to form a three-dimensional cylinder shaped embryo. • Most organ systems continue, or start, to develop (organogenesis): • The nervous system and chorion continue to develop. • The heart and the rest of the cardiovas...