The Urinary System Kidney ( No.32 ) Bladder (No.33) 周俊 20180531

Kidney cortex medulla Capsule Cortex Medulla

kidney General structure Capsule： D.C.T labyrinth Cortex：medullary rays renal column Medulla：10-18 renal pyramids

Medulla Medullary rays labyrinth

Uriniferous tubules Nephron renal corpuscle glomerulus Bowman capsule renal tubules proximal tubule thin segment distal tubule Collecting tubule： cortical medullary papillary Loop of Henle

Cortical labyrinth（迷路）: renal corpuscle+convoluted renal tubules Medullary rays（髓放线）: straight renal tubules+collecting tubules

Renal corpuscle （肾小体） Located in the cortical labyrinth Glomerulus（血管球） Bowman capsule（肾小囊）: parietal layer– simple squamous epi. visceral layer-- podocyte

Distal Proximal convoluted tubules: acidophilic,brush border,irregular Distal convoluted tubules: less acidophilic, flatter cells, regular

In the medullary rays: Collecting tubule Distal straight tubule Proximal straight tubule

Medulla C.T. Thin segment Collecting tubule

Ureter （输尿管）

Bladder （膀胱） Mucosa 1)Transitional epithelium 2)Lamina propria Muscular layer Adventitia

膀胱（bladder）

Bladder (No33): HE × 40

Bladder: HE ×100

Bladder: HE×400 Transitional epi,

Transitional epithelium 充盈状态 空虚状态 膀胱切片

实验报告： 拍典型图片1-2张，word上传 文件名：姓名-Urinary system（20180531） Kidney 1.Low power: Cortical labyrinth（迷路） Medullary rays（髓放线） 2.Renal corpuscle proximal tubule Distal tubule Thin segment Collecting tubule

THE END!