Describe the functions of the placenta, the structure of the umbilical cord, and the early development of a baby, including when bones form and what an embryo is called after two months.

QUESTION 6
The placenta is an organ that develops in the uterus during pregnancy. Its primary functions are to provide the fetus with oxygen and nutrients from the mother's bloodstream and to remove waste products from the fetal blood. It also produces hormones essential for maintaining the pregnancy.

QUESTION 7
A) The umbilical cord typically contains three vessels.
B) These vessels include two umbilical arteries and one umbilical vein. The umbilical arteries carry deoxygenated blood and waste products from the fetus to the placenta. The umbilical vein carries oxygenated blood and nutrients from the placenta to the fetus.

QUESTION 8
A) Bones begin to form around two months after fertilization.
B) A few months after fertilization, the embryo that looks more like a baby is called the fetus.