Umbilicus

The Umbilicus (also known as the navel, belly button or tummy button) is a prominent scar on the abdomen, with its position being relatively consistent among humans. The umbilicus is used to visually separate the abdomen into quadrants.

Anatomy

The umbilicus is a prominent scar on the abdomen, with its position being relatively consistent among humans. The skin around the waist at the level of the umbilicus is supplied by the tenth thoracic spinal nerve (T10 dermatome). The umbilicus itself typically lies at a level corresponding to the junction between the L3 and L4 vertebrae, with some variation between individuals.

Clinical significance

The umbilicus is used in various surgical techniques such as the laparoscopic keyhole surgery, and in the Bianchi procedure for gastroschisis and omphalocele in infants. It is also used as a landmark in other surgical procedures.

Society and culture

In many cultures, the navel is seen as sexually and culturally significant. In some cultures, the navel is pierced for body jewelry.

See also

• Umbilical cord
• Umbilical hernia
• Umbilical vein
• Umbilical artery
• Umbilical cyst

References

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