What is the function of the ureters?

What is the function of the ureters?

• A. Transports urine.
• B. Filters blood.
• C. Stores urine.
• D. Produces urine.

Answer: (A)

Ureters are muscular tubes whose main job is to move urine from the kidneys to the bladder. The wall of each ureter contains smooth muscle arranged in layers that produce rhythmic peristaltic waves. These contractions push urine downward toward the bladder, a process assisted by gravity, especially when not upright. The ureter enters the bladder at an angle through the bladder wall, creating a functional one-way entry so urine doesn’t flow backward. This function is different from the kidneys, which filter blood to produce urine, and from the bladder, which stores urine until it’s voided. The ureters don’t produce or filter urine; they simply transport it.

Ureters are muscular tubes whose main job is to move urine from the kidneys to the bladder. The wall of each ureter contains smooth muscle arranged in layers that produce rhythmic peristaltic waves. These contractions push urine downward toward the bladder, a process assisted by gravity, especially when not upright. The ureter enters the bladder at an angle through the bladder wall, creating a functional one-way entry so urine doesn’t flow backward.

This function is different from the kidneys, which filter blood to produce urine, and from the bladder, which stores urine until it’s voided. The ureters don’t produce or filter urine; they simply transport it.