The renal medulla is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids.Blood enters into the kidney via the renal artery, which then splits up to form the interlobar arteries.he renal medulla is hypertonic to the filtrate in the nephron and aids in the reabsorption of water. Blood is filtered in the glomerulus by solute size. Ions such as sodium, chloride, potassium, and calcium are easily filtered, as is glucose.
Also known as dyshidrotic eczema, the key characteristic of this form of eczema is blistering that is restricted to the hands and feet. Pompholyx eczema is a type of eczema that is usually restricted to the hands and feet.
Blisters on hands and feet can be due to dyshidrotic eczema, a skin condition, initially appearing as small itchy clusters of clear water (fluid-filled) vesicles. Usually this condition involves center of the palms and also sides of the fingers; but occasionally the soles of the feet may also get affected.