TOPICS: Proximal convoluted tubule (PCT), bicarbonate (HCO3-), sodium/hydrogen (Na+/H+) antiporter, glomerulus, angiotensin II, phosphate, sodium/phosphate (Na+/PO43-) cotransporter, parathyroid hormone (PTH), amino acids, sodium/amino acid (Na+/amino acid) cotransporter, potassium (K+), Acetazolamide, carbonic anhydrase (CA), loop diuretics, thin descending limb, thick ascending limb (TAL), Loop of Henle, collecting duct, thiazide diuretics, Amiloride, triamterene, aldosterone, antidiuretic hormone (ADH), alpha-intercalated cell, beta-intercalated cell, principal cell, aquaporins, Na/K/2Cl cotransporter (NKCC), distal convoluted tubule (DCT), glucose, sodium-glucose linked transporter (SGLT), glucose transporter (GLUT), urea, ammonia (NH3), hypertonic, hypotonic, medulla, osmolarity, tubular filtrate, simple diffusion, magnesium, calcium, sodium/chloride (Na+/Cl-) symporter, sodium/calcium (Na+/Ca2+) antiporters (exchangers), antidiuretic hormone (ADH), aquaporins, aldosterone, hydrogen/potassium (H+/K+) antiporter, H+-ATPase, renal tubular acidosis type I, metabolic acidosis, calcium phosphate kidney stones, hypokalemia, renal tubular acidosis type II, renal tubular acidosis type IV, hypoaldosteronism, hyperkalemia, secretion, reabsorption, tubular fluid (TP)