Chapter 19 (multiple choice and essay type: (a) draw and explain the structure of a typical nephron all the way to the collecting ducts. [20 minutes, 1 page of writing + one figure: afferent arteriole transfers blood to renal corpuscle. Blood travels through glomerulus in the bowman"s capsule, entering the nephron as filtrate. The glomerulus capillaries join to form the efferent arteriole: filtered fluid flows from bowman"s capsule into proximal tubule, primary fxn of proximal tubule is bulk reabsorption of isosmotic fluid. Cells transport solutes out of lumen, and water follows by osmosis then into loop of henle: descending portion of loop: more solute reabsorbed than water. [15 minutes, draw additional parts on the same figure as above] Vasa recta surrounds loop of henle where it dips into medulla. Passage of solutes and molecules between these two types of capillaries is mediated be interstitial fluid.