近曲小管 Proximal convoluted tubule 远曲小管 Distal convoluted tubule 肾小体 Renal corpuscle 入球小动脉 Afferent glomerular arteriole 出球小动脉 Efferent glomerular arteriole 髓袢粗段 Thick segment of loop 集合管 髓袢细段 Collecting duct Thin segment of loop 图 肾单位示意图 光（径等闭 0》爱线、于之多至、。 1951 North Sichuan Medical University