Saved Bookmarks
| 1. |
Write a short note on micturition. |
|
Answer» 1. The process of release of urine from the urinary bladder is called micturition. 2. The average capacity of urinary bladder is 700 ml. 3. When urinary bladder is almost half filled, stretch receptors in urinary bladder transmit impulses to spinal cord, initiating a conscious desire to expel urine. 4. Micturition reflex center of spinal cord transmit impulses to the wall of urinary bladder and internal urethral sphincter. 5. Bladder muscles contract and muscles of internal urethral sphincter relax. 6. The external sphincter receives impulses from conscious centre of brain and relaxes. 7. This leads to elimination of urine from the bladder. |
|