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Trace the route taken by a toxic urea molecule from the point where it was filtered...

Trace the route taken by a toxic urea molecule from the point

where it was filtered from the blood in the glomerulus to the point where it was released from the body.

Science   Anatomy-And-Physiology   
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Answer #1

Answer

Route of a toxic urea molecule :

  1. Glomerulus
  2. Bowman's capsule
  3. Proximal convoluted tubule
  4. Descending limb of Henle's loop
  5. Ascending limb of Henle's loop
  6. Distal convoluted tubule
  7. Collecting duct
  8. Renal papilla
  9. Minor calyx
  10. Major calyx
  11. Renal pelvis
  12. Ureter
  13. Urinary bladder
  14. Internal urethral spincter
  15. Urethra
  16. External urethral spinter
  17. Urethral opening Out of the body
  • Urea is generated during ammonia metabolism as a nitrogenous waste product.
  • Urea is filtered from glomerulus into the Bowman's capsule.
  • 50% of urea is then reabsorbed at proximal convoluted tubule.
  • But at ascending limb of Henle's loop, urea is also secreted into renal tubule.
  • Urine is a component of urine.
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