orbitosphenoid
The bone that is situated in the orbit on either side of the presphenoid; it generally forms a part of the sphenoid in the adult, and may be independent in the young. Every claim on this page comes from the Leumas anatomy graph and carries its source.
What the orbitosphenoid is
The bone that is situated in the orbit on either side of the presphenoid; it generally forms a part of the sphenoid in the adult, and may be independent in the young. The atlas records it as a bone at the organ scale in the human body.
Where the orbitosphenoid is
It sits in the head, within the skeletal 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 orbitosphenoid connects to
The atlas records 19 typed relationships for it, across 6 kinds of connection. part of anatomical structure, axial skeletal system and basicranium, and 7 more.
Supply and innervation
This dataset asserts no arterial supply, venous drainage or innervation for the orbitosphenoid. 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 ala minor (os sphenoidale), ala minor ossis sphenoidalis, ingrassia's process, lesser wing of sphenoid, lesser wing of sphenoidal bone and orbitosphenoid bone, and 3 more. Searching any of those names reaches this page.
Source
Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002478, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.
- Part of: anatomical structure, axial skeletal system, basicranium, craniocervical region, facial skeleton and head, and 4 more.
- A kind of: anatomical structure, bone element, cranial bone, endochondral bone and skeletal element.
- composed of: bone tissue.
- contributes to morphology of: sphenoid bone.
- contains: optic foramen.
- connects: superior orbital fissure.
Questions
Where is the orbitosphenoid?
It sits in the head, within the skeletal 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 orbitosphenoid connect to?
Part of: anatomical structure, axial skeletal system, basicranium, craniocervical region, facial skeleton and head, and 4 more.
Is the orbitosphenoid 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.