What Is The Place Where Blood Is Made Before The Placenta Is Formed In An Embryo?
What Is The Place Where Blood Is Made Before The Placenta Is Formed In An Embryo?
A Brief Overview of The Placenta
The placenta is an organ that is vital for the development of a fetus in the womb. It acts as a link between the mother and the baby, providing nourishment and oxygen to the baby, and also removing waste products from the baby’s blood. It is a complex organ, developed from the same cells that form the embryo. It is formed from the mother’s uterus and connects to the baby through the umbilical cord.
Where Is Blood Made Before The Placenta Is Formed?
Before the placenta is formed, the embryo relies on the yolk sac for nourishment. The yolk sac is a structure that contains the embryo's blood cells. It also contains proteins, carbohydrates, and fats that are vital for the development of the embryo. As the embryo grows, the yolk sac begins to shrink and eventually disappears. At this stage, the blood cells in the embryo begin to mature and form blood vessels. This is the time when blood is first produced in the embryo.
How Is Blood Produced In The Embryo?
Blood production in the embryo begins in the liver and spleen. The liver produces red blood cells and the spleen produces white blood cells. As the embryo grows, the heart begins to form and the blood vessels start to develop. This allows the blood to be circulated throughout the embryo and provide nourishment to the cells. Once the placenta is formed, it takes over the role of providing oxygen and nutrients to the baby.
Conclusion
The place where blood is made before the placenta is formed in an embryo is in the yolk sac. As the embryo grows, the yolk sac begins to shrink and the blood cells in the embryo begin to mature and form blood vessels. The liver and spleen produce red and white blood cells respectively. Once the placenta is formed, it takes over the role of providing oxygen and nutrients to the baby.
References
1. Levi, S. (2019). What Is the Placenta? The Role of the Placenta During Pregnancy. Retrieved from https://www.healthline.com/health/pregnancy/placenta
2. Weiss, M. (2012). How Is Blood Produced In The Embryo? Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3499782/
