Final answer:
The umbilical region is situated at the front of the body and is thus anterior to the vertebral region, which is part of the spine on the backside.
Step-by-step explanation:
The umbilical region is anterior to the vertebral region. The term anterior refers to something situated towards the front of the body, while posterior references the back. Considering the orientation of the human body, the umbilical region, which is near the belly button, is therefore classified as being on the front side of the body, hence anterior to the vertebral region, which is part of the spine located on the backside.