1h 28min, apr 7, 2020 y - Placentation
Description:
The placenta is fully developed around 14 - 16 weeks. When this organ becomes fully developed, it is responsible for providing nutrition, excretion, respiration, and endocrine function.Added to timeline:
Date:
1h 28min, apr 7, 2020 y
Now
~ 6 years and 3 months ago