The primary structure found within the medulla is the ________. a. loop of Henle b. minor calyces c. portal system d. ureter

The functional unit of the kidney is called ________.

a. the renal hilus

b. the renal corpuscle

c. the nephron

d. Bowman’s capsule

The color of urine is determined mainly by ________. a. diet b. filtration rate c. byproducts of red blood cell breakdown d. filtration efficiency

Blood filtrate is captured in the lumen of the ________. a. glomerulus b. Bowman’s capsule c. calyces d. renal papillae

If there were no aquaporin channels in the collecting duct, ________. a. you would develop systemic edema b. you would retain excess $Na^+$ c. you would lose vitamins and electrolytes d. you would suffer severe dehydration

The fine tuning of water recovery or disposal occurs in ________. a. the proximal convoluted tubule b. the collecting ducts c. the ascending loop of Henle d. the distal convoluted tubule