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explain anatomy and histlogy of urinary system for seminar, final and mid terms. describe each organ according to the topography, definition ,morphology, nerve supply, external and internal structure, function

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This guide is compiled directly from four authoritative textbooks in your medical library. Here is a summary of what's covered:
What this guide covers (organ by organ):
Each of the 5 urinary organs is described under the exact headings you requested:
OrganTopographyDefinitionMorphologyNerve SupplyExternal StructureInternal StructureFunction
Kidney✅✅✅✅✅✅✅
Ureter✅✅✅✅✅✅ (histology)✅
Bladder✅✅✅✅✅✅✅
Female Urethra✅✅✅✅-✅ (histology)✅
Male Urethra✅✅✅✅✅✅ (histology)✅
High-yield exam points to memorize:
  • Hilum order: vein → artery → ureter (anterior to posterior)
  • 3 ureteric constrictions (stone lodgment sites)
  • JGA = macula densa + JG cells + lacis cells (renin regulation)
  • Sympathetic = storage; Parasympathetic = voiding
  • Uroplakin plaques = urothelium impermeability mechanism
  • Juxtamedullary nephrons (15%) = urine concentration
  • GFR = 125 mL/min = 180 L/day
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