PATHOLOGY

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 process of emptying urine from the storage organ, namely, the urinary bladder. The detrusor is the smooth or involuntary muscle of the bladder wall. The urethral muscles consist of the external and internal sphincter.

Detailed explanation-3: -Urethra. This tube allows urine to pass outside the body. The brain signals the bladder muscles to tighten, which squeezes urine out of the bladder. At the same time, the brain signals the sphincter muscles to relax to let urine exit the bladder through the urethra.