Urinary tract structure and infection. Body fluids, nephron function and diuretics. Water balance and regulation of osmolarity. Acid-base balance and regulation of pH. Glomerular filtration and acute kidney injury. Proteinuria and the nephrotic syndrome. Glomerulonephritis and the acute nephritic syndrome. Diabetic nephropaphy and chronic kidney disease. End stage kidney disease and replacement of renal function. Hypertension and the kidney. Pregnancy and the kidney. Urinary tract obstruction and stones. Renal masses and urinary tract tumours. Drugs and the kidney.