Dialysis blocks the passage of larger substances (for example, red blood cells, large proteins). This replicates the filtering process that takes place in the kidneys when the blood enters the kidneys and the larger substances are separated from the smaller ones in the glomerulus. The two main types of dialysis, hemodialysis and peritoneal dialysis, remove wastes and excess water from the blood in different ways. Hemodialysis removes wastes and water by circulating blood outside the body through an external filter, called a dialyzer, that contains a semipermeable membrane. The blood flows in one direction and the dialysate flows in the opposite.
Blood in the Water match and spat at the Russians. To avoid a riot, police entered the arena and shepherded the crowd away. Pictures of Zádor's injuries were published around the world, leading to the "Blood in the Water" moniker. Reports that the water in the pool turned red were, however, an exaggeration. Zádor said his only thought was whether he would be able to play the next match. The referees stopped the match; Hungary was declared the winner since they had been leading. Hungary then beat Yugoslavia 2–1 in the final to win their fourth Olympic gold medal. Zádor's injury would force him to