Explain micturition....

Tqsm....!!

Micturition is the process of expulsion of the final selectively secreted and processed filtrate (commonly known as Urine) from the body through the Urethra. Before micturition, urine is held in an elastic muscular bag like structure called urinary bladder connecting the ureters from kidneys to the urethra. They contain stretch receptors that are in turn associated with certain osmoregulatory regions in the brain. When the urinary bladder is filled with urine, stretch receptors send signals to brain that urine must be expelled so as to accommodate the urine that is coming from kidneys (Urine production is a continuous process). Thus, the brain signals the urethral and bladder muscles to help the bladder remove the urine stored (about 1-1.5 L a day).