húgyvezeték

The húgyvezeték, also known as the ureter, is a muscular tube that carries urine from the kidney to the bladder. Humans have two húgyvezetékek, one for each kidney. These tubes are approximately 25-30 centimeters long and about 5 millimeters in diameter. They descend from the renal pelvis of the kidney, passing through the abdominal cavity and pelvis, to enter the posterior aspect of the urinary bladder.

The walls of the húgyvezeték contain smooth muscle that contracts in a wave-like motion called peristalsis. This peristaltic action propels urine downwards towards the bladder, even against gravity. The inner lining of the húgyvezeték is made of transitional epithelium, which is also found in the bladder and urethra, and is capable of stretching to accommodate the flow of urine.

The húgyvezeték plays a crucial role in the urinary system by ensuring the efficient transport of urine. Obstructions in the húgyvezeték, such as kidney stones, can cause significant pain and lead to serious health complications if not treated promptly. Infections can also affect the húgyvezeték, potentially traveling from the bladder up to the kidneys. Medical imaging techniques are often used to visualize the húgyvezeték and diagnose any abnormalities.