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Urinary System

Urinary System. Organs Kidney Ureters Urinary Bladder Urethra. Functions of the Urinary System Regulation of internal environment composition Excretion of certain waste products . Kidney Capsule Cortex Medulla Pyramids Columns Calyces Pelvis.

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Urinary System

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  1. Urinary System

  2. Organs • Kidney • Ureters • Urinary Bladder • Urethra

  3. Functions of the Urinary System • Regulation of internal environment composition • Excretion of certain waste products

  4. Kidney • Capsule • Cortex • Medulla • Pyramids • Columns • Calyces • Pelvis

  5. Functional Unit of Kidney: • Nephron

  6. http://www.physiology.wisc.edu/phys335/renal_4-4.swf

  7. Ureter • from the renal pelvis to the urinary bladder • retroperitoneal • lined with transitional epithelium • longitudinal and circular smooth muscle layers

  8. Urinary bladder lined with transitional epithelium lining thrown into rugae within bladder wall: the detrusor muscle trigone: funnels urine into urethra

  9. Urethra • from urinary bladder to outside • lined with stratified epithelium

  10. Path of Urine Flow

  11. Urethral Sphincters • Internal: smooth muscle • External: skeletal muscle

  12. Micturition

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