Fig. 2
From: Umbilical venous catheter misplacement due to unexpected supernumerary patent umbilical artery

Umbilical cord showing three arteries and one vein. The patent supernumerary artery and the vein are both cannulated
From: Umbilical venous catheter misplacement due to unexpected supernumerary patent umbilical artery
Umbilical cord showing three arteries and one vein. The patent supernumerary artery and the vein are both cannulated