umbilical cord
The fetal circulation is the circulatory system of a human fetus, often encompassing the entire fetoplacental circulation that also includes the umbilical cord and the blood vessels within the placenta that carry fetal blood.The fetal circulation works differently from that of born humans, mainly because the lungs are not in use: the fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord.
That is the the Umbilicus, or Umbilical cord. It attaches right in the center of the fetal belly.
An umbilical vein is one of the blood vessels contained in the umbilical cord. It contributes to fetal circulation.
It is a 10 inch cord that attaches to the base of the phone charger.
The fetal circulation is based mainly on the veinous circulation during pregnancy. Once the uterine connections are lost, the adult circulation takes over.
Umbilical cord is the life line for the fetus. Fetus gets oxygen and nutrition via umbilical cord. The metabolic waste and the carbon bi oxide is taken away back to the mother via umbilical cord. It is very interesting to know about the fetal circulation in detail.
In fetal circulation, the placenta provides oxygen and nutrients to the fetus, so the lungs are not used for oxygen exchange - instead, a bypass called the ductus arteriosus shunts blood away from the lungs. After birth, the lungs take over oxygen exchange, the ductus arteriosus closes, and the foramen ovale between the atria closes, redirecting blood flow through the heart to support pulmonary circulation.
The pulmonary circuit is commonly bypassed in fetal circulation. This is because fresh blood is provided by the mother to the fetus.
umbilical
It is bypassed because there is no need for the blood to go to the lungs and get "pick up" if the pig is dead.
To check the fetal circulation you must check the placenta is functioning well as it is the respiratory center for the fetus. You can also check the fetals heart.
Umbilical