pia mater in dogs

The innermost layer of the leptomeninges, consisting of a delicate membrane closely covering the surface of the brain and spinal cord,and lying under the arachnoid membrane. The pia, unlike the arachnoid, extends into the sulci in gyrencephalic animals. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the pia mater is

The innermost layer of the leptomeninges, consisting of a delicate membrane closely covering the surface of the brain and spinal cord,and lying under the arachnoid membrane. The pia, unlike the arachnoid, extends into the sulci in gyrencephalic animals. The atlas records it as a organ at the organ scale in the dog.

Where the pia mater is

It sits within the nervous system. Only the system is known. The position shown carries almost no spatial information.

What the pia mater connects to

The atlas records 6 typed relationships for it, across 4 kinds of connection. a kind of leptomeninx.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the pia mater. 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 pia mater of neuraxis, pial membrane and pia. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002361, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: leptomeninx.
• Adjacent to: perivascular space and subarachnoid space.
• subtype: brain pia mater and spinal cord pia mater.
• superficial to: dentate gyrus molecular layer.

Questions

Where is the pia mater?

It sits within the nervous system. Only the system is known. The position shown carries almost no spatial information.

What does the pia mater connect to?

A kind of: leptomeninx.

Is the pia mater 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.