[Reactivity of umbilical and placental veins].
D005260:Female; D006801:Humans; D010920:Placenta / Q000098:blood supply* / Q000166:cytology / Q000502:physiology; D011247:Pregnancy; D014471:Umbilical Veins / Q000166:cytology / Q000502:physiology*; D014680:Veins / Q000502:physiology
Reaktivita umbilikálních a placetárních cév