placental circulation n.
Circulation of blood through the placenta during intrauterine life, serving fetal needs for aeration, absorption, and excretion.
This condition obtains up to the time of birth and the consequent interruption of the placental circulation.
The foal may, however, die from the cessation of the placental circulation unless it is speedily delivered.
These four kinds of omphalosites are either dead when born, or they die as soon as the placental circulation is cut off.
In the case of a syphilitic mother it is most probable that the infection is conveyed to the fœtus by the placental circulation.