When you apply the brakes, brake fluid is forced under pressure into the wheel cylinder, which in turn pushes the brake shoes into contact with the machined surface on the inside of the drum. When the pressure is released, return springs pull the shoes back to their rest position.
Normally, protein is not removed when the kidneys filter waste from the blood. However, when the kidneys are damaged, protein leaks through the damaged filters and is removed from the body in the urine, along with the waste products.
â Vicky. Normally, the kidneys filter urine from the blood but retain protein, so there is not extensive loss of protein into the urine. Protein may be present in the urine because of acute inflammation or kidney stone disease, or as a sign of kidney damage. Vicky. Normally, the kidneys filter urine from the blood but retain protein, so there is not extensive loss of protein into the urine. Protein may be present in the urine because of acute inflammation or kidney stone disease, or as a sign of kidney damage.