Lamina papyracea

Last revised by Assoc Prof Craig Hacking on 02 Jul 2021

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.

It articulates:

It thickens posteriorly to form the optic tubercle, protecting the optic nerve.

Lamina papyracea is Latin for paper-thin, which is an appropriate term to describe this thin sheet or paper-like osseous structure.

Anatomy: Head and neck

Anatomy: Head and neck

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Figure 1: labeled 12
    Drag here to reorder.
  • Figure 2: lateral view (Gray's illustrations)
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.