FMA definition : Membrane organ, each instance of which is a fibrous membrane anchored to the periosteum
along the entire margin of some orbit, extending to the levator palpebrae superioris
muscle in some upper lid and to the tarsal plate in some lower lid.;
Membrane organ, each instance of which is a fibrous membrane anchored to the periosteum
along the entire margin of some orbit, extending to the levator palpebrae superioris
muscle in some upper lid and to the tarsal plate in some lower lid.