The ureters exit medially from the kidney at the renal hilum posterior to the renal vessels , then course inferomedially along the psoas major muscle and transverse processes of the lumbar vertebrae. They cross the external iliac artery just distal to the bifurcation of the common iliac, then course along the lateral wall of the pelvis to empty into the posterior aspect of the urinary bladder at the bladder trigone.
Blood is supplied by the ureteral branches of renal and testicular or ovarian arteries, and abdominal aorta. Renal and testicular or ovarian veins supply venous drainage.
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