pronephros in dogs

In mammals, the pronephros is the first of the three embryonic kidneys to be established and exists only transiently. In lower vertebrates such as fish and amphibia, the pronephros is the fully functional embryonic kidney and is indispensible for larval life[GO]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the pronephros is

In mammals, the pronephros is the first of the three embryonic kidneys to be established and exists only transiently. In lower vertebrates such as fish and amphibia, the pronephros is the fully functional embryonic kidney and is indispensible for larval life[GO]. The atlas records it as a organ at the organ scale in the dog.

Where the pronephros is

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

What the pronephros connects to

The atlas records 7 typed relationships for it, across 4 kinds of connection. a kind of anatomical entity, anatomical structure and kidney.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the pronephros. 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 pronephric kidney, archinephron, embryonic kidney and pronephron. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002120, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: anatomical entity, anatomical structure and kidney.
• develops into: head kidney and mesonephros.
• located in: intraembryonic coelom.
• contains: pronephric duct.

Questions

Where is the pronephros?

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

What does the pronephros connect to?

A kind of: anatomical entity, anatomical structure and kidney.

Is the pronephros 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.