Blood is filtered by the kidneys.
blood
all the components of blood get to the kidney to be filtered..however: red blood cells, and platelets are the only parts of blood that are not filtered. there have been cases of glucose being filtered (inn diabetics). Things filtered include, plasma (water), urine, salts, protein and foreign bodies!
Blood gets filtered because of the Nephrons, which are tiny little blood capillaries inside the kidneys.
The kidneys
The kidney does not get filtered. It does the filtering of the blood that passes through it. It removes impurities from the blood, and filters these impurities to the urinary bladder. The filtered blood is sent back into the body to be recirculated. And the impurities are expelled from the body in the urine.
the kidney filter blood
If urine wasn't filtered in the kidney, the particles in the urine would cause your genitals to explode.
serum
Blood is filtered there.
The efferent arteriole receives the blood that has been filtered by the glomerulus.
Food.
Kidneys.