Learn about the ureters, the tubular structures that carry urine from the kidneys to the bladder. Find out their gross and histological features, course, relations, blood supply, innervation, lymphatic drainage and clinical aspects. Ureters are small, muscular tubes that are part of the urinary tract system. They contract to move urine from the kidneys to the bladder. The ureter is a paired fibromuscular tube that conveys urine from the kidneys in the abdomen to the bladder in the pelvis. The ureter is 25-30 cm long and has three parts: The ureter begins its descent to the bladder by running along the medial aspect of the psoas muscle. Ureter is a part of the human excretory system that transports urine through the kidney to the urinary bladder.
