part_of part of part of located_in (type level) located in located in located_in surrounds surrounds composed primarily of mesangial cell Homo sapiens Homo sapiens renal glomerulus cell layer mesangium EMAPA:28248 Wikipedia:Mesangium FMA:84139 UMLS:C0017655 NCIT:C33101 BTO:0002494 UBERON:0002319 WP considers this the same as glomerular mesangium. In MA, glomerular and extraglomerular are distingsuished. FMA class has no definition and is a type of stroma, which is inconsistent with our classification of this here. mesangial The inner layer of the glomerulus, within the basement membrane surrounding the glomerular capillaries. EMAPA:36561 uberon MA:0002617 glomerular capillary kidney interstitium glomerular basement membrane