Armed Forces Day (Poland) Armed Forces Day, known also as the Feast of the Polish Armed Forces (Polish: ÅwiÄto Wojska Polskiego), is a national holiday celebrated annually on 15 August in Poland, commemorating the anniversary of the 1920 victory over Soviet Russia at the Battle of Warsaw during the PolishâSoviet War.
It performs the following important functions; 1  FORMATION AND ELIMINATION OF URINE: The main function of urinary system is formation and elimination of urine. 2  OSMOREGULATION: Kidneys are important osmoregulatory organs of human body. 3  ACID BASE BALANCE: Kidneys are important regulators of pH of body fluids.
Your kidneys, which are the main part of the urinary system, are made up of millions of nephrons that act as individual filtering units and are complex structures themselves. The ureters, urethra, and urinary bladder complete this intricate system. The urinary system helps maintain homeostasis by regulating water balance and by removing harmful substances from the blood. The blood is filtered by two kidneys, which produce urine, a fluid containing toxic substances and waste products.