ANATOMY

Detailed explanation-1: -The ureters are bilateral thin (3 to 4 mm) tubular structures that connect the kidneys to the urinary bladder, transporting urine from the renal pelvis into the bladder. The muscular layers are responsible for the peristaltic activity that the ureter uses to move the urine from the kidneys to the bladder.

Detailed explanation-2: -The ureter is a muscular tube with non-linear mechanical properties which conveys urine from the kidneys to the bladder [1]. In the urinary system, the peristaltic motion is caused by a muscular contraction of the ureteral wall initiated by pacemakers.

Detailed explanation-3: -The function of the ureter is to transport urine from the renal pelvis toward the bladder and to protect the renal parenchyma from distally generated backflow and back pressure. The ureter manifests peristaltic activity and can adapt its mechanical characteristics to diuresis amount.

Detailed explanation-4: -Urine is transported out of the papilla by a peristaltic process to the pelvis and ureters and then is stored in the bladder. Peristalsis is initiated in the renal pelvis and is propagated along the urinary tract by smooth muscle cells in the ureter coat.