NoBlood

"It is significant that the blood system of a pregnant woman is separate from that of the fetus in her womb; their blood types are often different. The mother does not pass her blood into the fetus. Formed elements (cells) from the mother's blood do not cross the placental barrier into the fetus' blood, nor does the plasma as such. In fact, if by some injury the mother's and the fetus' blood mingle, health problems can later develop (Rh or ABO incompatibility). However, some substances from the plasma cross into the fetus' circulation. Do plasma proteins, such as immune globulin and albumin? Yes, some do.

A pregnant woman has an active mechanism by which some immune globulin moves from the mother's blood to the fetus'. Because this natural movement of antibodies into the fetus occurs in all pregnancies, babies are born with a degree of normal protective immunity to certain infections.

It is similar with albumin, which doctors may prescribe as a treatment for shock or certain other conditions. Researchers have proved that albumin from the plasma is also transported, though less efficiently, across the placenta from a mother into her fetus.

That some protein fractions from the plasma do move naturally into the blood system of another individual (the fetus) may be another consideration when a Christian is deciding whether he will accept immune globulin, albumin, or similar injections of plasma fractions. One person may feel that he in good conscience can; another may conclude that he cannot. Each must resolve the matter personally before God."(my italics)

My question is:

Its true that only this fractions cross the placenta? Or there are more? What they are? There are red cells, white cells or others primary components of blood crossing the placenta to the fetus?

I will like a simple answear, because I'm not a doctor, as You can see.

thank very much

Madaleno