The classic descriptions of the human liver's visceral surface identify three primary fissures.
Understanding Liver Fissures
The liver, a vital organ, has several grooves or depressions on its surface, known as fissures. These are essential anatomical landmarks. According to classic descriptions, there are three main fissures on the visceral surface:
- Transverse Fissure (Porta Hepatis): This is a deep groove where blood vessels, nerves, and bile ducts enter and exit the liver.
- Sagittal Fissure: This fissure runs vertically and can be subdivided further into the right and left sagittal fissures.
- Umbilical Fissure: This groove is associated with the attachment of the umbilical vein in fetal life.
| Fissure | Description |
|---|---|
| Transverse Fissure | Deep groove for entry/exit of vessels, nerves, and bile ducts. |
| Sagittal Fissure | Vertical groove, further divided into right and left sections. |
| Umbilical Fissure | Groove related to umbilical vein attachment during fetal development. |
Variant Fissures
While the three fissures mentioned are the most commonly recognized, there can be additional ones. These are considered variant inferior hepatic fissures (IHFs). These additional fissures are not always present and can vary in size and location.
Summary
In summary, while variations exist, the standard anatomical description of the liver includes three main fissures.
