Virtsatiekanava

Virtsatiekanava refers to the anatomical structures that transport urine from the kidneys to the outside of the body. This system includes the renal pelvis, ureters, urinary bladder, and urethra. The renal pelvis is the funnel-shaped structure within each kidney that collects urine produced by nephrons. From the renal pelvis, urine travels down the ureters, which are two muscular tubes connecting the kidneys to the urinary bladder. The ureters use peristalsis, rhythmic muscular contractions, to move urine downwards. The urinary bladder is a hollow, muscular organ that stores urine. Its elasticity allows it to expand as it fills. When the bladder reaches a certain capacity, the urge to urinate is triggered. Finally, the urethra is a tube that carries urine from the bladder out of the body. The length and function of the urethra differ between sexes, being significantly shorter in females and longer in males, where it also serves as a passageway for semen. This entire pathway is crucial for the excretion of metabolic waste products and maintaining fluid balance in the body. Any disruption or blockage in the virtsatiekanava can lead to significant health issues, including infections and kidney damage.