pericardial sac in dogs

A double-walled sac containing the heart and the roots of the great vessels. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the pericardial sac is

A double-walled sac containing the heart and the roots of the great vessels. The atlas records it as a organ at the organ scale in the dog.

Where the pericardial sac is

It sits in the thorax and trunk, within the cardiovascular system. Only the region is known. The position shown is somewhere plausible inside it and nothing more.

What the pericardial sac connects to

The atlas records 6 typed relationships for it, across 3 kinds of connection. part of circulatory system and pericardium.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the pericardial sac. 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 pericardium. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002406, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: circulatory system and pericardium.
• A kind of: organ and thoracic segment organ.
• contains: pericardial cavity and serous pericardium.

Questions

Where is the pericardial sac?

It sits in the thorax and trunk, within the cardiovascular system. Only the region is known. The position shown is somewhere plausible inside it and nothing more.

What does the pericardial sac connect to?

Part of: circulatory system and pericardium.

Is the pericardial sac 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.