part of part of capable of capable of glomerular filtration renal glomerulus renal corpuscle glomerular epithelium basement membrane of epithelium glomerular basement membrane http://upload.wikimedia.org/wikipedia/commons/d/de/PhysiologieGlom%C3%A9rulaire.png FMA:74274 SCTID:243897006 Membrane between the mesonephric podocytes and the renal glomerular capillaries. It is a trilaminar structure composed of the fused basement membranes of the glomerular capillaries and basement membrane of the podocytes. The capillary membranes touch the GBM at contact points that are separated by pores. The membrane is semi-permeable allowing water and small molecules to pass into the renal capsular space.[TAO] TAO:0005285 GBM glomerular filtration membrane Wikipedia:Glomerular_basement_membrane glomerular capillary basement membrane NCIT:C32683 ZFA:0005285 UMLS:C0599297 UBERON:0005777 EMAPA:30965 MESH:D050533 MA:0001659 The layer of extracellular matrix that lies between the endothelium of the glomerular capillaries and the podocytes of the inner or visceral layer of the Bowman capsule; it is a fusion of the endothelial cell and podocyte basal laminas and acts as a physical barrier and an ion-selective filter. EMAPA:28251