With your USB stick connected to your computer, create a folder in the root directory named 'music'. Once you've done this, copy your audio into that folder, and wait for the transfer to complete. When it's done, remove your USB stick from your computer, and plug it into your PS4. 3.
(2) stimulates the release of renin, which restricts losses of water and salt in the urine through reabsorption at the nephron. The main purpose of the kidneys is to separate urea, mineral salts, toxins, and other waste products from the blood. In addition, the kidneys also conserve water, salts, and electrolytes.
By Walter Last. The main functions of the kidneys are the removal of metabolic waste matter, of any toxic material and excess of water, minerals, and bio-chemicals in order to keep their blood levels within on optimal range. This is done by filtering the blood and concentrating the waste in the form of urine.