What's really going on behind your belly button
By Hannah Dahlen, The Conversation
Updated 4:45 AM ET, Fri November 3, 2017
Story highlights
The umbilical cord is made up of one large vein and two smaller arteries
After birth, the veins and arteries in the cord close up and form ligaments
Our belly button is a reminder for life that once we were attached to and dependent on our mother, floating like a little astronaut in our liquid universe.
The cord, and in particular the remaining belly button, has always been fascinating to humans and we still embark on some interesting traditions to celebrate and aid the physical separation of the umbilical cord.
http://www.cnn.com/2017/11/03/health/belly-button-partner/index.html
