Explain the mechanism of urine in humans.
Asked by | 12th Jul, 2008, 11:00: AM
Urine is produced by the nephrons of kidneys. Urine formation takes place in 3 steps:
i) Glomerular filtration - Filtration of blood under pressure in the glomerulus. This process ia called ultrafiltration.
ii) Selective Reabsorption - Useful substances from filtrate are reabsorbed by renal tubular cells and returned to blood.
iii) Tubular secretion - Separation of unwanted substances from blood and actively secreting them into the renal filtrate.
The concentrated urine is then taken to urinary bladder through ureters and stored there, until release.
Answered by | 12th Jul, 2008, 12:19: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number