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No the placenta produced and cleanses the blood fetus
fetus will be positive. The first child is okay but the second child may cause some problems so you need to get RhoGAM shot
In the umbilical cord you have one vein and two arteries. This vein goes to the liver of foetus. This blood vessel contains most oxygen and food in case of foetus. After birth this vessel gets obliterated to form the falciform ligament.
The umbilical vessel removes urine from the bladder of the fetus via the kidneys. The umbilical vessel has many uses in the fetal/placental environment.
The aortaDuring pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? A.It flows into the inferior vena cava.
Arteriovenous malformations (AVMs) are blood vessel defects that occur before birth when the fetus is growing in the uterus (prenatal development). The blood vessels appear as a tangled mass of arteries and veins.
Pulmonary vein
Nicotine constricts blood vessels and thus reduces blood flow with oxygen and nutrients to placenta and fetus.
blood flow from the mother to the fetus
If you smoke during pregnancy will result to intrauterine retarded growth because nicotine can constrict blood vessel.
in a fetus blood does not reach the lungs for purification. In a baby blood goes to the lungs for oxygenation.
right and left umbilical arteries carry oxygenated blood. left umbilical vein carries oxygenated blood to the fetus. both these vessels are present in the umbilical cord.