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Urinary system

Urinary system. Compounds and functions Embryogenesis Kidney Nephrons types Blood supplying Glomerular filter Nephrons histophysiology Endocrine system of kidney Urine transport system.

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Urinary system

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  1. Urinary system • Compounds and functions • Embryogenesis • Kidney • Nephrons types • Blood supplying • Glomerular filter • Nephrons histophysiology • Endocrine system of kidney • Urine transport system

  2. Kidneys – urine production endocrine Ureters –voiding of urineUrinary bladder–urine deposition Urethra – voiding of urine • Embryogenesis of urinary system • Source – intermediate mesoderm (nephrogonotom) • Stages – pronephroi mesonephroi metanephroi

  3. Kidney

  4. MFU – nephronrenal corpuscle+tubular systemTypes: 1. cortical – short and long2. juxtamedullary Blood supply 25% of cardiac output Two capillary systems (glomerular and peritubular) High blood pressure in glomerulus

  5. Renal cortex

  6. Renal corpuscle

  7. Renal corpuscle ultrastructure

  8. Glomerular filter

  9. Glomerular filter Between circulating blood and urinary space • Podocyte • Basement membrane unusialy thick physical and electrical barrier • Endothelium fenestrated

  10. Proximal convoluted tube

  11. Distant convoluted tube

  12. Urine production

  13. Endocrine system of kidneys • Renin-angiotensin • Prostaglandins • Callicrein-kinins • Erythropoietin • Juxtaglomerular apparatus • Juxtaglomerular cells • Juxtavascular cells • Macula densa area • Mesangial cells

  14. Urine transport system • Renal pelvis • Ureters • Urinary bladder • Urethra Tunics I Mucosa: epithelium (urothelium) lamina propria muscularis mucosa II Submucosa III Muscular IV Adventitia

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