THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Micturition is the process in which urine is expelled from the urinary bladder through the urethra by relaxation of the sphincter muscles, located at the opening of the urinary bladder, into urethra under impulse from the nervous system.

Detailed explanation-2: -Micturition, or urination, is the act of emptying the bladder. When the bladder is full of urine, stretch receptors in the bladder wall trigger the micturition reflex.