orbital plate of ethmoid bone


or·bi·tal plate of eth·moid bone

[TA] a thin plate of ethmoid bone forming part of the medial wall of the orbit and the lateral wall for the ethmoidal labyrinth. Synonym(s): lamina orbitalis ossis ethmoidalis [TA], lamina papyracea, orbital lamina of ethmoid bone, orbital layer of ethmoid bone, orbital plate, paper plate, papyraceous plate