MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers
the question.
1) Urine is produced by the
A) gall bladder.
B) kidney.
C) urinary bladder.
D) urethra.
E) ureter.
2) Which structure is NOT part of the blood circulation through the kidney?
A) renal corpuscle
B) B) vasa recta
C) C) loop of Henle
D) D) glomerulus
3) A glomerulus is
A) the portion of the nephron that attaches to the collecting duct.
B) the portion of the nephron closest to the renal corpuscle.
C) the hairpin-shaped segment of the nephron.
D) a "knot" of capillaries that lies within the Bowman's capsule.
E) the expanded end of a nephron.
4) Urine is carried to the urinary bladder by
A) the ureters.
B) lymphatics.
C) blood vessels.
D) the urethra.
E) all of the above
5) The portion of the nephron closest to the renal corpuscle is the
A) loop of Henle.
B) minor calyx.
C) collecting duct.
D) proximal tubule.
E) distal tubule.
6) The portion of the nephron that attaches to the collecting duct is the
A) loop of Henle.
B) proximal tubule.
C) collecting duct.
D) minor calyx.
E) distal tubule.
7) The hairpin-shaped segment of the nephron is the
A) proximal tubule.
B) distal tubule.
C) vasa recta.
D) minor calyx.
, E) loop of Henle.
8) In normal kidneys, blood cells and plasma proteins are
A) filtered then reabsorbed.
B) B) filtered and secreted.
C) not filtered.
D) secreted then reabsorbed.
9) The force for glomerular filtration is the
A) osmotic pressure in the glomerular capillaries.
B) ATP-dependent processes in the nephron.
C) blood pressure in the glomerular capillaries.
D) fluid pressure produced by the displacement of the fluid in the lumen of the tubules.
E) none of the above
10) Glucose and amino acids are reabsorbed by
A) cotransport.
B) B) diffusion.
C) countertransport.
D) D) symport with sodium.
Match each step in urine formation to its description.
A. excretion
B. filtration
C. reabsorption
D. secretion
A 11) movement from the nephron lumen to the external environment
C 12) movement from the nephron lumen to the blood
B 13) movement from the glomerulus to the nephron lumen
D 14) movement from the peritubular capillaries to the nephron lumen
15) Technically, the kidneys are located
A) behind the pleural membranes.
B) in the thoracic cavity.
C) in the pelvic cavity.
D) in the abdominal cavity.
E) behind the peritoneal membrane.
16) If blood flow through the afferent arterioles increases,
A) stretch reflexes trigger vasoconstriction to reduce the flow.
B) the stretch triggers further relaxation of the arteriolar wall, lessening blood pressure.
C) the smooth muscle in the vessel walls stretches to accommodate the increased flow.
D) B and C
17) The primary route for water loss from the body is the system.
A) respiratory
B) cardiovascular
C) digestive
D) integumentary