part of part of develops from develops from contributes to morphology of immediate transformation of organ part multicellular organism abdomen renal system nephron ZFA:0005282 EMAPA:28491 EV:0100384 EMAPA:35592 Wikipedia:Nephron GAID:428 The basic functional unit of the kidney. its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine. A nephron eliminates wastes from the body, regulates blood volume and blood pressure, controls levels of electrolytes and metabolites, and regulates blood pH. Its functions are vital to life and are regulated by the endocrine system by hormones such as antidiuretic hormone, aldosterone, and parathyroid hormone.[WP]. MA:0000375 TAO:0002153 SCTID:361337001 mature nephron NCIT:C13048 CALOHA:TS-1312 UBERON:0001285 FMA:17640 BTO:0000924 MESH:D009399 trunk kidney abdominal segment of trunk nephrogenic mesenchyme uriniferous tubule primitive nephron upper urinary tract main body axis body proper