Artery of the umbilical cord (100X)

Image copyright: University of Oslo, CC BY-NC-ND 4.0. (Tissue stain: H+E).

This is a close up micrograph of one of the two umbilical arteries. The wall is thicker than the wall in the vein, but not as thick as you will find it elsewhere in the body. It consists of epithelium close to the lumen, then the lamina propria and the muscular layer (tunica muscularis).

Published July 20th 2019, updated August 18th 2022.