proximal straight tubule in dogs

The proximal straight tubule is the part of the descending limb that extends from the proximal convoluted tubule to the descending thin tubule. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the proximal straight tubule is

The proximal straight tubule is the part of the descending limb that extends from the proximal convoluted tubule to the descending thin tubule. The atlas records it as a tissue at the tissue scale in the dog.

Where the proximal straight tubule 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 proximal straight tubule connects to

The atlas records 8 typed relationships for it, across 4 kinds of connection. part of descending limb of loop of Henle and proximal tubule.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the proximal straight tubule. 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 S3, thick descending limb of proximal tubule, tubulus rectus proximalis, pars recta, pars recta tubuli renalis and proximal tubule segment 3, and 1 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001290, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: descending limb of loop of Henle and proximal tubule.
• A kind of: renal cortex tubule and renal straight tubule.
• Continuous with: descending thin limb and proximal convoluted tubule.
• overlaps: outer medulla outer stripe loop of Henle and renal cortex tubule.

Questions

Where is the proximal straight tubule?

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 proximal straight tubule connect to?

Part of: descending limb of loop of Henle and proximal tubule.

Is the proximal straight tubule 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.