glomerular mesangium

A thin membrane which helps to support the capillary loops in a renal glomerulus. It is connective tissue composed of mesangial cells - myofibroblasts phenotypically related to vascular smooth muscle cells (muscle, smooth, vascular), phagocytes and the mesangial extracellular matrix. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the glomerular mesangium is

A thin membrane which helps to support the capillary loops in a renal glomerulus. It is connective tissue composed of mesangial cells - myofibroblasts phenotypically related to vascular smooth muscle cells (muscle, smooth, vascular), phagocytes and the mesangial extracellular matrix. The atlas records it as a organ at the organ scale in the human body.

Where the glomerular mesangium is

It sits in the abdomen and trunk, within the cardiovascular and urinary systems. 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 glomerular mesangium connects to

The atlas records 4 typed relationships for it, across 3 kinds of connection. part of mesangium and renal glomerulus vasculature.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the glomerular mesangium. 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:0002320, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: mesangium and renal glomerulus vasculature.
• A kind of: stroma.
• contributes to morphology of: renal glomerulus.

Questions

Where is the glomerular mesangium?

It sits in the abdomen and trunk, within the cardiovascular and urinary systems. 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 glomerular mesangium connect to?

Part of: mesangium and renal glomerulus vasculature.

Is the glomerular mesangium 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.