1、肾小体 (renal corpuscle) (1)血管球 Macula densa glomerulus) Juxtaglomerular cells Bowman's capsule Efferent arteriole (paretal layer) (2)肾小囊 (renal capsule) Bowman's capsule (visceral layer podocytes The parietal layer of Bowman,s capsule is composed of simple squamous whereas its visceral layer form podocytes. ultrafiltrate enters Bowman's(urinary) pace and leaves the renal corpuso urinary pole, via th convoluted tubule. The afferent lomerular arteriole enters and the Parietal layer efferent glomerular arteriole leaves the at its vascular pole, the Urinary pole g and the latter draining the glomerulus. The macula densa component of the distal tubule comes in close proximity to the juxtaglomerular cells of the afferent (and efferent)
1、肾小体 （renal corpuscle） ⑴血管球 （glomerulus） ⑵肾小囊 （renal capsule）
肾小体(扫描电镜)
肾 小 体 ( 扫 描 电 镜 )
肾小体 Endothelium (电镜模式图) Podocyte Basal Prima 血管球内皮 process 肾小囊足细胞 Distal tubule Macula ferent arteriole Efferent arteriole owman's capsule antal layer) Secondary I process 7i/(pedicel slit Parietal la Podocyte Secondary cell bod Urinary pole process (pedicel) Primary Brush border (m process
肾 小 体 ( 电 镜 模 式 图 ) 血 管 球 内 皮 肾 小 囊 足 细 胞
()血管球系 ②巨噬细胞 膜 ①系膜细胞 内皮胞 形态结构 足胞的足突 功能 間展胞 truncal er 理間腰基 皮胞具 federal n 内皮翻胞
⑶血管球系 膜① 系膜细胞 形态结构 功能 ② 巨噬细胞
壁层 极周细胞 (2)肾小囊(B0wman囊)脏层足细胞 肾小体 (冷冻割断扫描电镜)
肾 小 体 （ 冷 冻 割 断 扫 描 电 镜） (2) 肾 小 囊 (Bowman 囊) 壁层 脏层 极周细胞 足细胞