endothelium in dogs

A layer of epithelium that lines the heart, blood vessels (endothelium, vascular), lymph vessels (endothelium, lymphatic), and the serous cavities of the body[MESH]. Simple squamous epithelium which lines blood and lymphatic vessels and the heart[FMA]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the endothelium is

A layer of epithelium that lines the heart, blood vessels (endothelium, vascular), lymph vessels (endothelium, lymphatic), and the serous cavities of the body[MESH]. Simple squamous epithelium which lines blood and lymphatic vessels and the heart[FMA]. The atlas records it as a tissue at the tissue scale in the dog.

Where the endothelium is

This dataset records no region or system for it. No positional evidence of any kind. Drawn outside the body so it can still be found and counted, never inside it.

What the endothelium connects to

The atlas records 9 typed relationships for it, across 4 kinds of connection. part of tunica intima.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the endothelium. 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.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001986, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: tunica intima.
• A kind of: anatomical structure, epithelium and simple squamous epithelium.
• subtype: cardiovascular system endothelium, corneal endothelium, endothelium of artery and lymph node endothelium.
• Develops from: mesoderm.

Questions

Where is the endothelium?

This dataset records no region or system for it. No positional evidence of any kind. Drawn outside the body so it can still be found and counted, never inside it.

What does the endothelium connect to?

Part of: tunica intima.

Is the endothelium the same in other species?

This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.