what is the difference between ureter and urethra
â¢ Ureter propels urine from kidneys to the urinary bladder, while urethra passes urine from the urinary bladder to exterior. â¢ In males urethra is considered as a part of both the reproductive and urinary system, whereas ureter is considered as a part of the urinary system.â¢ Normally, ureter is longer than urethra, but urethra has a larger diameter than ureters. In males urethra is considered as a part of both the reproductive and urinary system, whereas ureter is considered as a part of the urinary system. â¢ Normally, ureter is longer than urethra, but urethra has a larger diameter than ureters.