MICROANATOMY

Detailed explanation-1: -The kidneys act as very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances into the bloodstream. The kidneys receive a high blood flow and this is filtered by very specialised blood vessels.

Detailed explanation-2: -Urine is formed in the kidneys through a filtration of blood. The urine is then passed through the ureters to the bladder, where it is stored. During urination, the urine is passed from the bladder through the urethra to the outside of the body.

Detailed explanation-3: -Larger blood components such as blood cells or proteins are not filtered in the glomerulus and instead are retained in the glomerulus and returned into the bloodstream. In this way, the kidneys regulate the body’s water and salt balance as well as the body’s pH and blood pressure.