

Problem 1
Identify the structures of the kidney in the following diagram.
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a. ___
b. ___
c. ___
d. ___
e. ___
f. ___
g. ___
h. ___
i. ___
j. ___
k. ___
l. ___
m. ___
Problem 3
The process of urine formation involves all of the following, except
(a) Filtration of plasma
(b) Reabsorption of water
(c) Reabsorption of certain solutes
(d) Secretion of wastes
(e) Secretion of excess lipoprotein and glucose molecules
Problem 4
The glomerular filtration rate is regulated by all of the following, except
(a) Autoregulation
(b) Sympathetic neural control
(c) Cardiac output
(d) Angiotensin II
(e) The hormone ADH
Problem 5
The distal convoluted tubule is an important site for
(a) Active secretion of ions
(b) Active secretion of acids and other materials
(c) Selective reabsorption of sodium ions from the tubular fluid
(d) All of these
Problem 6
Changing the luminal diameters of the afferent and efferent arterioles to alter the GFR can be an example of
(a) Hormonal regulation
(b) Autonomic regulation
(c) Autoregulation
(d) All of these
Problem 7
What are the primary functions of the urinary system?
Problem 8
Identify the three regions of the male urethra.
Problem 9
Trace the pathway of the protein-free filtrate from where it is produced in the renal corpuscle until it drains into the renal pelvis in the form of urine. (Use arrows to indicate the direction of flow.)
Problem 11
What is the function of the juxtaglomerular complex?
Problem 12
Trace the path of a drop of blood from its entry into the renal artery until its exit at a renal vein.
Problem 13
Name and define the three distinct processes involved in the production of urine.
Problem 15
Which structures of the urinary system are responsible for the transport, storage, and elimination of urine?
Problem 16
When the renal threshold for a substance exceeds its tubular maximum:
(a) More of the substance will be filtered
(b) More of the substance will be reabsorbed
(c) More of the substance will be secreted
(d) The amount of the substance that exceeds the tubular maximum will be found in the urine
(e) Both a and d occur
Problem 18
Sodium reabsorption in the DCT and in the cortical portion of the collecting system is accelerated by the secretion of
(a) ADH
(b) Renin
(c) Aldosterone
(d) Erythropoietin
Problem 21
How are proteins excluded from filtrate? Why is this important?
Problem 22
What interacting controls stabilize the glomerular filtration rate (GFR)?
Problem 23
What primary changes occur in the composition and concentration of filtrate as a result of activity in the proximal convoluted tubule?
Problem 24
Describe two functions of countercurrent multiplication in the kidney.
Problem 25
Describe the urine voiding reflex.
Problem 26
In a normal kidney, which of the following conditions would cause an increase in the glomerular filtration rate (GFR)?
(a) Constriction of the afferent arteriole
(b) A decrease in the pressure of the glomerulus
(c) An increase in the capsular hydrostatic pressure
(d) A decrease in the concentration of plasma proteins in the blood
(e) A decrease in the net glomerular filtration process
Problem 30
Mannitol is a sugar that is filtered, but not reabsorbed, by the kidneys. What effect would drinking a solution of mannitol have on the volume of urine produced?