Where does the blood in a fetus comes from? Is it transferred from the mother or created by its own cells?

Question

Where does the blood in a fetus comes from? Is it transferred from the mother or created by its own cells?

In: 14

Answer 1

The mothers placenta sends essential nutrients through the umbilical cord to the fetus. This allows the cells of the fetus to replicate. Once the fetus reaches a certain age, marrow and bones start to form. Then the newly developed heart pumps the new blood through the veins of the fetus.