Linked from

The 4 pages that link to Umbilical cord, each with the reason it gives.

• PlacentaRelated: Its vessels carry fetal blood to and from the exchange surface.

• FetusRelated: Its vessels carry oxygen and nutrients toward the fetus and waste products away.

• Amniotic fluidRelated: Amniotic fluid allows the cord to move freely while cushioning it from compression.

• NavelRelated: Its attachment to the fetus marks the site that becomes the navel.