membranous labyrinth

Organ with organ cavity which consists of the vestibular labyrinth and the cochlear labyrinth. The membranous labyrinth is lodged within the bony labyrinth and has the same general form; it is, however, considerably smaller and is partly separated from the bony walls by a quantity of fluid, the perilymph.[FMA, WP]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the membranous labyrinth is

Organ with organ cavity which consists of the vestibular labyrinth and the cochlear labyrinth. The membranous labyrinth is lodged within the bony labyrinth and has the same general form; it is, however, considerably smaller and is partly separated from the bony walls by a quantity of fluid, the perilymph.[FMA, WP]. The atlas records it as a organ at the organ scale in the human body.

Where the membranous labyrinth is

It sits in the head, within the sensory system. 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 membranous labyrinth connects to

The atlas records 11 typed relationships for it, across 6 kinds of connection. part of internal ear.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the membranous labyrinth. 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 labyrinthus membranaceus. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001849, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: internal ear.
• A kind of: organ.
• Adjacent to: perilymphatic space.
• contains: cochlear labyrinth, endolymphatic duct, endolymphatic space, semicircular canal, vestibular labyrinth and wall of membranous labyrinth.
• Develops from: ear vesicle.
• surrounded by: perilymph.

Questions

Where is the membranous labyrinth?

It sits in the head, within the sensory system. 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 membranous labyrinth connect to?

Part of: internal ear.

Is the membranous labyrinth 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.