Lamina papyracea
The lamina papyracea, also known as the orbital lamina of the ethmoid bone, is the principal component of the medial wall of the orbit, and also the lateral surface of the ethmoid air cells.
Gross anatomy
It articulates:
- superiorly with the orbital plate of the frontal bone
- inferiorly with the maxilla and orbital process of the palatine bone
- anteriorly with the lacrimal bone
- posteriorly with the sphenoid bone
It thickens posteriorly to form the optic tubercle, protecting the optic nerve.
History and etymology
Lamina papyracea is Latin for paper-thin, which is an appropriate term to describe this thin sheet or paper-like osseous structure.
Related pathology
Siehe auch:
Assoziationen und Differentialdiagnosen zu Lamina papyracea:
