part of part of composed primarily of basement membrane Homo sapiens basal lamina of epithelium https://upload.wikimedia.org/wikipedia/commons/6/65/Basal_lamina.jpg this class represents a continuous sheet of basal lamina which can underlie multiple epithelial cells over large regions. In contrast, the GO class 'basal lamina' represents a portion of substance on the scale of a single cell. BILA:0000065 Acellular anatomical structure that consists of a thin sheet of fibrous proteins that underlie and support the cells of an epithelium. It separates the cells of an epithelium from any underlying tissue. basal laminae VHOG:0001592 EHDAA2:0003065 Wikipedia:Basal_lamina TGMA:0001850 AAO:0010269 UMLS:C0085872 TAO:0001485 NCIT:C32186 basal lamina of connective tissue ZFA:0001485 CARO:0000065 basal lamina A basal lamina is certainly present in Bilateria and was evaluated as an autapomorphy of this taxon.[well established][VHOG] WBbt:0005756 lamina basalis NIF_Subcellular:sao1397492660 HAO:0000065 MESH:D001485 UBERON:0000482 XAO:0003163 AEO:0000065 FMA:62918 acellular membrane basement membrane of epithelium