Which tube carries urine from the kidney to the bladder?

• A. Urethra
• B. Renal Pelvis
• C. Ureters
• D. Renal Vein

Answer: (C)

Ureters are the tubes that carry urine from the kidneys to the bladder. Each kidney funnels urine into a renal pelvis, which then flows into a ureter. The ureters propel urine downward with rhythmic smooth muscle contractions (peristalsis), aided by gravity, and they insert into the bladder at an oblique angle to prevent backflow as the bladder fills. The urethra, by contrast, moves urine from the bladder to outside the body; the renal pelvis is the kidney’s collecting area, not the tube to the bladder; and the renal vein carries blood away from the kidney.