The ethmoid bone has four main parts ... of the ethmoidal labyrinths are referred to as the lamina papyracea or orbital lamina. The lamina papyracea makes up the majority of the inside wall ...

Fractures that occur within the orbital ... or lamina papyracea. With these types of fractures there is also prolapse of the medial rectus muscle and orbital fat into the air cells of the ethmoid.

Axial and coronal sections of the nasal bone window are taken in consequential fashion. The scans allow for visualizations of the orbital walls, zygomatic arches, frontozygomatic sutures, ethmoid ...