orbital septum

A membranous sheet that acts as the anterior boundary of the orbit. It extends from the orbital rims to the eyelids[WP]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the orbital septum is

A membranous sheet that acts as the anterior boundary of the orbit. It extends from the orbital rims to the eyelids[WP]. The atlas records it as a organ at the organ scale in the human body.

Where the orbital septum 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 orbital septum connects to

The atlas records 5 typed relationships for it, across 3 kinds of connection. part of eyelid tarsus and musculoskeletal system.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the orbital septum. 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 septum orbitale. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001822, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: eyelid tarsus and musculoskeletal system.
• A kind of: membrane organ and septum.
• surrounds: orbit of skull.

Questions

Where is the orbital septum?

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 orbital septum connect to?

Part of: eyelid tarsus and musculoskeletal system.

Is the orbital septum 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.