NCIt related terms : Ethmoid; Ethmoid bone structure (body structure);
NCIt definition : A light and spongy bone that is cubical in shape. This bone is positioned at the anterior
part of the cranium, sitting between the two orbits, at the roof of the nose. It consists
of four parts: a horizontal or cribriform plate; a perpendicular plate; and two lateral
masses or labyrinths.;
Alternative definition : CDISC: A light and spongy bone that is cubical in shape. This bone is positioned at
the anterior part of the cranium, sitting between the two orbits, at the roof of the
nose. It consists of four parts: a horizontal or cribriform plate; a perpendicular
plate; and two lateral masses or labyrinths. (NCI);