Question 1

All of the following are true of the kidneys except that they are

Accepted Answer

A)   located in a position that is retroperitoneal.
B)   surrounded by a fibrous capsule.
C)   located partly within the pelvic cavity.
D)   held in place by the renal fascia.
E)   covered by peritoneum.F) A) and B)
G) All of the above C

Question 2

The excretory functions of the urinary system are performed by the

Accepted Answer

A)   urethra.
B)   ureters.
C)   glomerulus.
D)   urinary bladder.
E)   kidneys.F) A) and E)
G) A) and C) E

Question 3

A glomerulus is

Accepted Answer

A)   the expanded end of a nephron.
B)   a knot of capillaries within the renal corpuscle.
C)   the source of erythropoietin.
D)   attached to the collecting duct.
E)   the horseshoe-shaped segment of the nephron.F) None of the above
G) All of the above

Question 4

The main force that causes filtration in a nephron is

Accepted Answer

A)   blood colloid osmotic pressure.
B)   glomerular hydrostatic pressure.
C)   osmotic pressure of the urine.
D)   capsular hydrostatic pressure.
E)   reabsorption in proximal convoluted tubule pulls filtrate from blood.F) A) and C)
G) None of the above

Question 5

The primary function of the proximal convoluted tubule is

Accepted Answer

A)   filtration.
B)   reabsorption of ions, organic molecules, vitamins, and water.
C)   secretion of acids and ammonia.
D)   secretion of drugs.
E)   adjusting the urine pH.F) C) and D)
G) B) and E)

Question 6

In the process of ________, two substances are moved across a cell membrane in the same direction without directly using cellular energy. One of the substances can be moved against a concentration gradient by this process.

Accepted Answer

A)   countertransport
B)   cotransport
C)   simple diffusion
D)   active transport
E)   co-osmosisF) A) and B)
G) D) and E)

Question 7

Nephrons located close to the medulla with long nephron loops are called ________ nephrons.

Accepted Answer

A)   cortical
B)   juxtaglomerular
C)   vasa recta
D)   juxtamedullary
E)   HenleF) All of the above
G) C) and D)

Question 8

The urinary function of elimination occurs through the

Accepted Answer

A)   liver.
B)   glomerulus.
C)   kidney.
D)   ureter.
E)   urethra.F) C) and D)
G) All of the above

Question 9

The pontine storage center controls micturition by

Accepted Answer

A)   stimulating bladder contractions.
B)   increasing contraction of the detrusor muscle.
C)   relaxing the internal urethral sphincter.
D)   increasing contraction of the external urethral sphincter and reducing detrusor muscle activity.
E)   stimulating the voiding reflex.F) B) and C)
G) B) and D)

Question 10

Figure 26-1 The Structure of the Kidney
 
Use Figure 26-1 to answer the following questions:
-Identify the structure labeled "8."

Accepted Answer

A)   renal pelvis
B)   minor calyx
C)   ureter
D)   major calyx
E)   renal columnF) A) and C)
G) A) and B)

Question 11

Glomerular (Bowman's)  capsule and the glomerulus make up the

Accepted Answer

A)   renal pyramid.
B)   nephron loop (loop of Henle) .
C)   renal corpuscle.
D)   renal papilla.
E)   collecting tubule system.F) B) and D)
G) A) and D)

Question 12

The filtration of plasma takes place in the

Accepted Answer

A)   nephron loop (loop of Henle) .
B)   distal convoluted tubule.
C)   papillary duct.
D)   renal corpuscle.
E)   ureter.F) None of the above
G) All of the above

Question 13

The region known as the macula densa is part of

Accepted Answer

A)   the proximal convoluted tubule.
B)   the distal convoluted tubule.
C)   the collecting duct.
D)   the nephron loop (loop of Henle) .
E)   glomerular (Bowman's)  capsule.F) None of the above
G) A) and B)

Question 14

Measurement of the functions of a nephron reveals a glomerular capillary pressure of 69 mm Hg, and a pressure in the capsular space of 15 mm Hg. Assuming that the blood colloid osmotic pressure is 30 mm Hg, and that essentially no plasma proteins are filtered by the glomerulus, what is the net filtration pressure in this case?

Accepted Answer

A)   30 mm Hg
B)   24 mm Hg
C)   69 mm Hg
D)   84 mm Hg
E)   99 mm HgF) A) and B)
G) All of the above

Question 15

Renal columns are

Accepted Answer

A)   internal cavities lined by the fibrous capsule.
B)   expanded ends of the ureters.
C)   the basic functional units of the kidney.
D)   bundles of tissue that extend between pyramids from the cortex.
E)   conical structures that are located in the renal medulla.F) All of the above
G) A) and E)

Question 16

Major calyces are

Accepted Answer

A)   large branches of the renal pelvis.
B)   expanded ends of nephrons.
C)   basic functional layers of the kidney.
D)   conical structures that are located in the renal medulla.
E)   the expanded ends of renal pyramids.F) A) and E)
G) B) and E)

Question 17

The efferent arteriole of a nephron divides to form a network of capillaries within the cortex called the ________ capillaries.

Accepted Answer

A)   peritubular
B)   glomerular
C)   vasa recta
D)   cortical
E)   efferentF) A) and B)
G) B) and D)

Question 18

As the filtrate passes through the renal tubules, approximately what percentage is reabsorbed and returnedto the circulation?

Accepted Answer

A)   1
B)   38
C)   63
D)   74
E)   99F) B) and E)
G) A) and B)

Question 19

Urine is carried from the urinary bladder to the outside of the body by the

Accepted Answer

A)   urethra.
B)   glomerulus.
C)   convoluted tubule.
D)   ureter.
E)   collecting duct.F) A) and E)
G) A) and D)

Question 20

The renal sinus is

Accepted Answer

A)   the innermost layer of kidney tissue.
B)   part of a renal pyramid.
C)   an internal cavity lined by the fibrous capsule.
D)   a large branch of the renal pelvis.
E)   a renal corpuscle.F) D) and E)
G) All of the above C

Exam 26: The Urinary System

All of the following are true of the kidneys except that they are

Correct Answer
verified
C

The excretory functions of the urinary system are performed by the

Correct Answer
verified
E

A glomerulus is

Correct Answer
verified

The main force that causes filtration in a nephron is

Correct Answer
verified

The primary function of the proximal convoluted tubule is

Correct Answer
verified

In the process of ________, two substances are moved across a cell membrane in the same direction without directly using cellular energy. One of the substances can be moved against a concentration gradient by this process.

Correct Answer
verified

Nephrons located close to the medulla with long nephron loops are called ________ nephrons.

Correct Answer
verified

The urinary function of elimination occurs through the

Correct Answer
verified

The pontine storage center controls micturition by

Correct Answer
verified

Figure 26-1 The Structure of the Kidney Use Figure 26-1 to answer the following questions: -Identify the structure labeled "8."

Correct Answer
verified

Glomerular (Bowman's) capsule and the glomerulus make up the

Correct Answer
verified

The filtration of plasma takes place in the

Correct Answer
verified

The region known as the macula densa is part of

Correct Answer
verified

Correct Answer
verified

Renal columns are

Correct Answer
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Major calyces are

Correct Answer
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The efferent arteriole of a nephron divides to form a network of capillaries within the cortex called the ________ capillaries.

Correct Answer
verified

As the filtrate passes through the renal tubules, approximately what percentage is reabsorbed and returnedto the circulation?

Correct Answer
verified

Urine is carried from the urinary bladder to the outside of the body by the

Correct Answer
verified

The renal sinus is

Correct Answer
verified
C

Exam 26: The Urinary System

All of the following are true of the kidneys except that they are

Correct AnswerverifiedC

The excretory functions of the urinary system are performed by the

Correct AnswerverifiedE

A glomerulus is

Correct AnswerverifiedShow Answer

The main force that causes filtration in a nephron is

Correct AnswerverifiedShow Answer

The primary function of the proximal convoluted tubule is

Correct AnswerverifiedShow Answer

In the process of ________, two substances are moved across a cell membrane in the same direction without directly using cellular energy. One of the substances can be moved against a concentration gradient by this process.

Correct AnswerverifiedShow Answer

Nephrons located close to the medulla with long nephron loops are called ________ nephrons.

Correct AnswerverifiedShow Answer

The urinary function of elimination occurs through the

Correct AnswerverifiedShow Answer

The pontine storage center controls micturition by

Correct AnswerverifiedShow Answer

Figure 26-1 The Structure of the Kidney Use Figure 26-1 to answer the following questions: -Identify the structure labeled "8."

Correct AnswerverifiedShow Answer

Glomerular (Bowman's) capsule and the glomerulus make up the

Correct AnswerverifiedShow Answer

The filtration of plasma takes place in the

Correct AnswerverifiedShow Answer

The region known as the macula densa is part of

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Renal columns are

Correct AnswerverifiedShow Answer

Major calyces are

Correct AnswerverifiedShow Answer

The efferent arteriole of a nephron divides to form a network of capillaries within the cortex called the ________ capillaries.

Correct AnswerverifiedShow Answer

As the filtrate passes through the renal tubules, approximately what percentage is reabsorbed and returnedto the circulation?

Correct AnswerverifiedShow Answer

Urine is carried from the urinary bladder to the outside of the body by the

Correct AnswerverifiedShow Answer

The renal sinus is

Correct AnswerverifiedC

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C

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E

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C