The arteria lienalis is a large artery in the abdomen that supplies the spleen with oxygen-rich blood.
Where is the arteria lienalis and what does it do?
This artery branches off from a vessel called the truncus coeliacus. From there, it curves behind the stomach towards the left side of the upper abdomen and eventually reaches the spleen. Its main job is to deliver a steady supply of fresh, oxygen-rich blood to the spleen. Along the way, it also sends off smaller branches that supply parts of the pancreas and the upper section of the stomach.
The spleen itself is an important organ for the immune system and for breaking down old blood cells. A good blood supply through the arteria lienalis is therefore essential for the spleen to work properly.
What does it mean in a medical context?
In doctor's letters, reports, or surgical notes, this term often appears when describing examinations of the upper abdomen or procedures involving the spleen, the pancreas, or nearby organs. The exact position and path of the artery matter, for example, during operations on the spleen or in certain conditions affecting the abdomen. Imaging methods such as ultrasound, CT, or MRI may also mention the arteria lienalis to describe the blood supply to the spleen or surrounding structures.
What does this mean for you?
If the arteria lienalis is mentioned in a report, it is usually just describing normal anatomy or explaining the blood supply to a particular area of the abdomen. It is very rare for the artery itself to be affected by a disease. In the vast majority of cases, its mention is purely descriptive and has no direct impact on your health.
Diseases or injuries of the arteria lienalis are uncommon and usually occur in connection with accidents, certain inflammatory conditions, or rare vascular disorders. In such cases, doctors would specifically point to a problem or finding relating to this vessel.
Other connections in the abdomen
The arteria lienalis is part of a larger network of vessels that supplies many organs in the upper abdomen. Its origin, the truncus coeliacus, plays a central role in this network. Those who would like to learn more about this branching system and its importance for the blood supply to the abdominal organs can find detailed information on the truncus coeliacus.
Alternative names and spellings
Medical texts sometimes use the term "splenic artery" instead. The Latin word "lienalis" means "relating to the spleen". In reports or findings, the abbreviation "A. lienalis" may also be used. All of these terms refer to the same artery.
In brief
The arteria lienalis is a normal and important blood vessel in the abdomen that primarily supplies the spleen and neighbouring organs. When it appears in medical documents, it is usually there for descriptive purposes and in the vast majority of cases has no clinical significance. Only in rare exceptions can this vessel itself be affected by a disease.
