1. Kidney D-60, 61 Kidney, Human sec B-28, 27 mammal kidney A-42 KIDNEY, INJECTED,SEC A-43 KIDNEY,HUMAN, SEC D-3 : macula densa C-1 Simpal cuboidal epithelium. Mammal kidney (medulla)

4. kidney

5. Medulla

6. Cortex D-3: “ MD ” MD:part of the wall of the distal tubule where ” it kisses its glomerulus good-bye ”

9. Long-looped nephrons Short-looped nephrons Subcapsular or cortical 1. Subcapsular or cortical short-looped nephrons Juxtamedullary 2. Juxtamedullary long-looped nephrons Intermediate or midcortical 3. Intermediate or midcortical nephrons Outer medulla Inner stripe Outer stripe Inner medulla Medulla Nephrons

10. 1. proximal convoluted tubule the longest & most convoluted segment 2. loop of Henle descending thick limb (pars recta) thin segment ascending thick limb 3. distal convoluted tubule 4. Arched collecting tubules; Collecting duct Renal Tubules

11. Cortical labyrinth Proximal convoluted tubule (PTC) Distal convoluted tubule (DTC) PCT:acidophilic cytoplasm indistinct lateral border small or occluded lumen basal striation P P P P D D D P Proximal convoluted tubule (PCT) Distal convoluted tubule (DCT)

12. Inner stripe of outer medulla

13. □

17. area cribrosa

18. A-7 BLADDER,CONTRACTED, SEC D4 Uninary bladder

19. A-97 Human Ureter, cs D-5 Ureter Monkey The mucosa: transitional epithelium and its supporting loose connective tissue The muscularis : smooth muscle inner longitudinal layer middle circular layer outer longitudinal layer Adventitia: the connective tissue

21. D-6 Urethra, mammal female "E," stratified squamous epithelium with a supporting connective tissue lamina propria. The muscularis, "M," consists of smooth muscle fiber bundles (an inner longitudinal layer,) a middle circular layer, an irregular outer longitudinal layer. The adventitia, "A," is a thin layer of loose fibrous connective tissue.