Multiple choice It's all about connections. The urinary bladder has three openings, what are they? Urethra, ureter, and inferior vena cava. Two urethras and the ureter. Urethra and two ureters. Urethra, ureter, and prostate gland. Reveal answer Fill a bubble to check yourself C Correct answer Explanation The urinary bladder has three openings: two for the ureters (which bring urine from the kidneys) and one for the urethra (which carries urine out of the body).