human_reference_atlas part of Homo sapiens epithelium nephron tubule thick ascending limb of loop of Henle juxtaglomerular apparatus macula densa BTO:0003940 MA:0002603 The macula densa is an area of specialized cells in the distal tubule that makes contact with the vascular pole of the glomerulus[GO]. UMLS:C0227662 not part of a nephron or distal tubule in MA and FMA macula densa Wikipedia:Macula_densa FMA:86333 uberon EMAPA:28399 NCIT:C33043 Macula Densa SCTID:244657003 UBERON:0002335 AS