An umbilical cord is that thing that was connected to you in that place where you’ll now find your belly button, and we all used to have one. Thanks to introductory biology classes, I presume that level of umbilical cord awareness is fairly common. But let’s go a little deeper (on Wikipedia) and learn more about what the cord does, besides providing the inspiration for countless movie scenes where the woman giving birth in the backseat of the car is like, “HOW ARE YOU GONNA CUT THE UMBILICAL CORD??”
During prenatal development, the umbilical cord is physiologically and genetically part of the fetus and, (in humans), normally contains two arteries (the umbilical arteries) and one vein (the umbilical vein), buried within Wharton’s jelly.
Two arteries and one vein buried in some jelly. Got it. But what does it look like?