(i) A - Afferent arteriole, B - Proximal convoluted tubule, C - Glomerulus,
D - Loop of Henle, E - Collecting duct
(ii) Following are the junctions of each above mentioned part
A - Carry blood to glomerulus for ultrafiltration.
B - Selective reabsorption of useful substances.
C - Ultrafiltration of blood.
D - Maintenance of the high osmolarity of medullary interstitial fluid.
E - Reabsorption of water to form hypertonic urine.