periarterial lymphatic sheath

The area of the spleen in which T cells surround the central arteriole. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the periarterial lymphatic sheath is

The area of the spleen in which T cells surround the central arteriole. The atlas records it as a organ at the organ scale in the human body.

Where the periarterial lymphatic sheath is

It sits in the abdomen and trunk, within the lymphatic & immune system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What the periarterial lymphatic sheath connects to

The atlas records 10 typed relationships for it, across 3 kinds of connection. part of abdomen, abdominal segment of trunk and lymphoid system, and 1 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the periarterial lymphatic sheath. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as PALS, T cell domain of the splenic white pulp, periarterial lymphoid sheath, periarteriolar sheath, spleen periarteriolar lymphatic sheath and splenic periarteriolar lymphoid sheath. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001960, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: abdomen, abdominal segment of trunk, lymphoid system and white pulp of spleen.
• A kind of: cell cluster, hemopoietic organ, immune organ, organ and trunk region element.
• contributes to morphology of: white pulp of spleen.

Questions

Where is the periarterial lymphatic sheath?

It sits in the abdomen and trunk, within the lymphatic & immune system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What does the periarterial lymphatic sheath connect to?

Part of: abdomen, abdominal segment of trunk, lymphoid system and white pulp of spleen.

Is the periarterial lymphatic sheath the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.