Human urine passes from each kidney via the ureter to (What?) next?
Ureter different ducts fulfill the same role in amphibians and fish. Ureter In human anatomy, the ureters are tubes made of smooth muscle fibers that propel urine from the kidneys to the urinary bladder. In the adult, the ureters are usually long and around in diameter. Histologically, the ureter is lined by the urothelium, a type of transitional epithelium, and has an additional smooth muscle layer in the more distal one-third to assist with peristalsis. In humans, the ureters arise from the pelvis of each kidney, and descend on top of the psoas major muscle to reach the brim of the
Ureter junction, is the most common and effective treatment for this problem. Injuries to the ureter with certain forms of trauma including penetrating abdominal injuries and injuries at high speeds followed by an abrupt stop (e.g., a high speed car accident). The ureter is injured in 0.2 per 1,000 cases of vaginal hysterectomies and 1.3 per 1,000 cases of abdominal hysterectomies, near the infundibulopelvic (suspensory) ligament or where the ureter courses posterior to the uterine vessels, near the cardinal ligament. A kidney stone can move from the kidney and become lodged inside the ureter, which can block the flow of urine,