The Canadian singer and songwriter recorded The Wreck of the Edmund Fitzgerald on his 1976 album Summertime Dream.. The single hit No. 1 in Canada and reached No. 2 on the Billboard Hot 100 chart in the United States.
After conception, the fertilized egg meanders to the end of your fallopian tube and enters your uterus, searching for the uterine wall. If it successfully implants itself there, the placenta will begin to form at that very spot about a week later. By the end of the first trimester, the placenta is fully grown and weighs about 1 1/4 pounds.
What are the two parts of the placenta. Fetal part of the placenta, formed by the villous chorion, its villi project into the intervillous space containing maternal blood. Maternal part of the placenta, formed by the decidua basalis. By the end of the fourth month the decidua basalis is replaced by the fetal part of the placenta. What connects the fetal and the maternal portion of the placater together. The fetal part of the placenta, is attached to the maternal part by the cytotrophoblastic shell, the external layer of trophoblastic cells on the maternal surface of the placenta.