PATHOLOGY

Detailed explanation-1: -The detrusor muscle is located within the walls of the bladder and is composed of smooth muscle fibers that are longitudinal and circular. The layers of the detrusor muscle start longitudinally in the inner layer, become circular in the middle layer, and then longitudinal again in the outer layer.

Detailed explanation-2: -The detrusor muscle, also detrusor urinae muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found in the wall of the bladder.

Detailed explanation-3: -Muscularis propria, also known as the detrusor muscle, consists of three sublayers: inner longitudinal, middle circular, and outer longitudinal. These sublayers are well-defined around the neck of the urinary bladder but are randomly aligned with the rest of the bladder wall.