|Class 11 Biology Excretory Products Elimination||Micturition|
Micturition is the release of urine from urinary bladder through urethra. It is also termed as ‘Urination’. This occurs involuntarily in children upto 4-5 years; thereafter regulated voluntarily.
Regulation of Micturition
Urinary bladder plays an important role in regulating micturition. It is a Collapsible sac-like structure located in pelvis. Its walls are made of muscles called Detrusor muscles, and the lower portion of bladder is Bladder neck.
Urinary bladder regulates micturition in the following way: