Question 1

When the body is dehydrated,secretion of the pituitary hormone that is abbreviated _______________ causes increased reabsorption of water from the collecting ducts.

Accepted Answer

The answer of When the body is dehydrated,secretion of the...

Question 2

Of the excretory organs that form during development,which one ultimately forms the adult kidney?

Accepted Answer

A)  Mesonephros
B)  Metanephros
C)  Pronephros
D)  Renanephros
E)  Uretonephros

Question 3

Coordinated movements of the microvilli in the proximal convoluted tubule assist in the propulsion of tubular fluid toward the nephron loop.

Accepted Answer

A) True 
 B)False  False

Question 4

Which layer is not found in the wall of the ureter?

Accepted Answer

A)  Adventitia
B)  Muscularis
C)  Mucosa
D)  Submucosa
E)  No exceptions;all layers are found in the wall of the ureter.

Question 5

Urine formed in the pyramids must flow within the kidney to the ureter.Which structure is not part of the transport path within the kidney that carries urine to the ureter?

Accepted Answer

A)  Renal sinus
B)  Major calyx
C)  Renal pelvis
D)  Minor calyx
E)  No exceptions;all choices transport urine.

Question 6

An obstruction in the glomerulus would affect the flow of blood into the

Accepted Answer

A)  renal artery.
B)  proximal convoluted tubule.
C)  efferent arteriole.
D)  distal convoluted tubule.
E)  afferent arteriole.

Question 7

Filtration occurs because

Accepted Answer

A)  the glomerulus is leaky.
B)  the afferent arteriole is wider in diameter than the efferent arteriole.
C)  the capillary wall is not completely ensheathed by the visceral layer of the glomerular capsule.
D)  the filtration slits allow materials from the blood plasma to enter the capsular space.
E)  All of the choices are correct.

Question 8

The spongy urethra

Accepted Answer

A)  is found only in males.
B)  is the longest portion of the urethra.
C)  is encased within the corpus spongiosum.
D)  is lined proximally by pseudostratified columnar epithelium and distally by stratified squamous epithelium.
E)  All of the choices are correct.

Question 9

An adult human kidney typically contains ______ renal pyramid(s) .

Accepted Answer

A)  2 to 5
B)  8 to 15
C)  16 to 24
D)  1
E)  30 to 40

Question 10

-This figure shows a renal corpuscle.The two structures indicated by number 3 collectively form the

Accepted Answer

A)  Macula densa
B)  Juxtaglomerular apparatus
C)  Corticomedullary junction
D)  Juxtamedullary junction
E)  Vasa recta B

Question 11

Which is not correct regarding nephrons?

Accepted Answer

A)  The renal corpuscle includes the glomerulus and the glomerular capsule.
B)  The renal tubule is composed of the proximal convoluted tubule,nephron loop,and distal convoluted tubule.
C)  The nephron is the functional filtration unit in the kidney.
D)  Eighty-five percent of nephrons are cortical nephrons.
E)  The renal corpuscle may be located in the renal cortex or renal medulla.

Question 12

Place the regions of the nephron in the correct order for the process of urine formation.
A: Capsular space of glomerulus
B: Nephron loop
C: Collecting duct
D: Distal convoluted tubule
E: Proximal convoluted tubule

Accepted Answer

A)  a,c,b,e,d
B)  e,d,b,a,c
C)  b,e,c,d,a
D)  b,d,c,e,a
E)  a,e,b,d,c

Question 13

-This figure shows a frontal section of the kidney.Which number(s) indicate a renal papilla?

Accepted Answer

A)  2,7
B)  3
C)  6
D)  9
E)  10

Question 14

The juxtaglomerular cells release the enzyme ______________ when the macula densa cells detect low blood volume or solute concentration.

Accepted Answer

The answer of The juxtaglomerular cells release the enzyme ______________...

Question 15

-This figure shows a renal corpuscle.What structure does number 4 indicate?

Accepted Answer

A)  Efferent arteriole
B)  Renal artery
C)  Peritubular capillary
D)  Afferent arteriole
E)  Efferent venule

Question 16

-This figure shows a renal corpuscle.What structure does number 1 indicate?

Accepted Answer

A)  Distal convoluted tubule (DCT) 
B)  Collecting duct
C)  Nephron loop
D)  Proximal convoluted tubule (PCT) 
E)  Papillary duct

Question 17

Urine flow from the renal pelvis to the urinary bladder is produced by

Accepted Answer

A)  ciliary action in the renal pelvis.
B)  suction from the urinary bladder.
C)  peristalsis of the ureters.
D)  hydrostatic pressure from the small intestine.
E)  contraction of the detrusor muscle.

Question 18

How does aldosterone affect urine formation?

Accepted Answer

A)  Increases the reabsorption of sodium and water by the distal convoluted tubule
B)  Increases the secretion of sodium and potassium ions from the nephron loop
C)  Decreases the reabsorption of sodium and chloride ions by the distal convoluted tubule
D)  Increases the secretion of water by all regions of the renal tubule
E)  Decreases the reabsorption of electrolytes,glucose,and plasma proteins by the proximal convoluted tubule A

Question 19

The ball of capillaries in the renal corpuscle is called the ________________.

Accepted Answer

The answer of The ball of capillaries in the renal...

Question 20

Which is not of ureteric bud origin?

Accepted Answer

A)  Renal pelvis
B)  Collecting duct
C)  Minor calyx
D)  Distal convoluted tubule
E)  Ureter

Exam 27: Urinary System

When the body is dehydrated,secretion of the pituitary hormone that is abbreviated _______________ causes increased reabsorption of water from the collecting ducts.

Correct AnswerverifiedShow Answer

Of the excretory organs that form during development,which one ultimately forms the adult kidney?

Correct AnswerverifiedShow Answer

Coordinated movements of the microvilli in the proximal convoluted tubule assist in the propulsion of tubular fluid toward the nephron loop.

Correct AnswerverifiedFalse

Which layer is not found in the wall of the ureter?

Correct AnswerverifiedShow Answer

Urine formed in the pyramids must flow within the kidney to the ureter.Which structure is not part of the transport path within the kidney that carries urine to the ureter?

Correct AnswerverifiedShow Answer

An obstruction in the glomerulus would affect the flow of blood into the

Correct AnswerverifiedShow Answer

Filtration occurs because

Correct AnswerverifiedShow Answer

The spongy urethra

Correct AnswerverifiedShow Answer

An adult human kidney typically contains ______ renal pyramid(s) .

Correct AnswerverifiedShow Answer

-This figure shows a renal corpuscle.The two structures indicated by number 3 collectively form the

Correct AnswerverifiedB

Which is not correct regarding nephrons?

Correct AnswerverifiedShow Answer

Place the regions of the nephron in the correct order for the process of urine formation. A: Capsular space of glomerulus B: Nephron loop C: Collecting duct D: Distal convoluted tubule E: Proximal convoluted tubule

Correct AnswerverifiedShow Answer

-This figure shows a frontal section of the kidney.Which number(s) indicate a renal papilla?

Correct AnswerverifiedShow Answer

The juxtaglomerular cells release the enzyme ______________ when the macula densa cells detect low blood volume or solute concentration.

Correct AnswerverifiedShow Answer

-This figure shows a renal corpuscle.What structure does number 4 indicate?

Correct AnswerverifiedShow Answer

-This figure shows a renal corpuscle.What structure does number 1 indicate?

Correct AnswerverifiedShow Answer

Urine flow from the renal pelvis to the urinary bladder is produced by

Correct AnswerverifiedShow Answer

How does aldosterone affect urine formation?

Correct AnswerverifiedA

The ball of capillaries in the renal corpuscle is called the ________________.

Correct AnswerverifiedShow Answer

Which is not of ureteric bud origin?

Correct AnswerverifiedShow Answer

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False

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B

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A

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