Assertion: umbilical cord | /r/MadeOf | one umbilical vein
Facets:
Source sentences:
text: It connects to the fetus by an umbilical cord of approximately 55–60 cm (22–24 inch) in length, which contains two umbilical arteries and one umbilical vein.
text: The umbilical cord contains two umbilical arteries and one umbilical vein, providing a connection between maternal and fetal blood circulation