2)Nephron: structural and functional unit, 1,000,000 renal corpuscle: cortical and juxtamedullary nephron 浅表肾单位 远曲小作小 /renal glomerulus 弓形集合小管 肾小体 近曲小管 /renal capsule 皮质集合小管 髓旁肾单位 renal tubule 近端小管直部 鰱放线 /proximal tubule convoluted portion 远端小管直部 -straight portion 细段 /thin segment 髓质集合小管 /distal tubule straight portion convoluted portion2) Nephron: structural and functional unit, 1,000,000 ---renal corpuscle: cortical and juxtamedullary nephron /renal glomerulus: /renal capsule ---renal tubule: /proximal tubule: -convoluted portion -straight portion /thin segment /distal tubule: -straight portion -convoluted portion