TissueDB/Tissues/Umbilicus

Surface anatomy of the front of the trunk, showing the umbilicus at the midline of the abdomen.
License: Public domain by Henry Vandyke Carter

Umbilicus (navel, or belly button) is the fibrous tissue at the center of the abdomen, marking the site where the umbilical cord — also called the navel cord — attached during fetal development. It is the umbilical scar that cord leaves behind.

Materials

Material	Visual	Tactile	Simulator	Notes
Small Balloon			Trocar Placement Trainer	Stands in for the umbilicus. The balloon neck sticks through a hole in the middle of the skin layer.^[1]

Abdominal Wall — full layer structure containing umbilicus
Skin — outer layer
Fascia — provides the fascial resistance layer
Peritoneum and Serosa — inner layer

References

↑ ALL-SAFE Consortium. Trocar Placement Simulation — build instructions. Materials list: "Small Balloon (Umbilicus)"; step 5: "cut an additional hole to allow for the balloon to stick through in the middle". ALL-SAFE/Trocar Placement/Simulation

Page data
Authors	Arturopelayo
License	CC-BY-SA-4.0
Language	English (en)
Related	0 subpages, 0 pages link here
Redirects	TissueDB/Tissues/Navel, TissueDB/Tissues/Belly button, TissueDB/Tissues/Navel Cord, TissueDB/Structures/Navel, TissueDB/Structures/Umbilical Scar
Views	90 page views (analytics)
Created	January 18, 2026 by Arturo Pelayo
Last edit	September 30, 2026 by Arturo Pelayo
Cite as	Arturopelayo (2026). "TissueDB/Tissues/Umbilicus". Appropedia. Retrieved October 4, 2026.
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[allsafe-trocar-1] ALL-SAFE Consortium. Trocar Placement Simulation — build instructions. Materials list: "Small Balloon (Umbilicus)"; step 5: "cut an additional hole to allow for the balloon to stick through in the middle". ALL-SAFE/Trocar Placement/Simulation

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