释义 |
zonula occludens
zonula occludens[¦zōn·yə·lə ə′klüd·ənz] (cell and molecular biology) tight junction zonula occludens
zo·nu·la oc·clu·'denstight junctions formed by the fusion of integral proteins of the lateral cell membranes of adjacent epithelial cells, limiting transepithelial permeability. Synonym(s): impermeable junction, tight junctionzonula (zon'yu-la) [L. zonula, little girdle] A small zone. Synonym: zonulezonula adherensThe portion of the junctional complex between columnar epithelial cells below the zonula occludens where there is an intercellular space of about 200 A.U. and the cellular membranes are supported by filamentous material.zonula ciliarisCiliary zonule.zonula occludensTight junction. |