远端小管 Distal tubule 致密斑 Macula densa Structure 入球微动脉 arteriole 出球微动脉 球旁细胞 Efferent arteriole spherical body Juxtaglomerular cells(modified 血管极 肾小囊壁层) Bowman's 肾小囊脏层足细胞) capsule Renal glomerulus lsil capsule visceral 壁层 (Renal capsule Parietal laver 肾小囊腔 尿极 Vascular pole 刷状缘(微绒毛) 近曲 Brush border (microvilli) convoluted Urinary pole tubule Fig17-2肾小体结构模式图 Schematic diagram of renal corpuscleStructure spherical body Renal glomerulus Renal capsule Vascular pole Urinary pole