Question 1

The internal urethral sphincter is formed by skeletal muscle fibers of the urogenital diaphragm.

Accepted Answer

A) True 
 B)False

Question 2

In anatomic position,the left kidney is inferior to the right kidney.

Accepted Answer

A) True 
 B)False

Question 3

Which is not of ureteric bud origin?

Accepted Answer

A)  Renal pelvis
B)  Collecting duct
C)  Minor calyx
D)  Distal convoluted tubule
E)  UreterF) B) and D)
G) B) and C)

Question 4

Which portion of the renal tubule is described as having simple cuboidal epithelium with only a sparse brush border of microvilli?

Accepted Answer

A)  Proximal convoluted tubule
B)  Distal convoluted tubule
C)  Ascending limb of nephron loop
D)  Descending limb of nephron loop
E)  Collecting ductF) D) and E)
G) All of the above

Question 5

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.F) B) and E)
G) D) and E)

Question 6

The capillaries of the glomerulus differ from other capillary networks in the body because they

Accepted Answer

A)  carry only deoxygenated blood.
B)  drain into an arteriole instead of a venule.
C)  contain no endothelium.
D)  absorb nutrients from the glomerular capsule.
E)  secrete mucus.F) B) and C)
G) B) and E)

Question 7

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.F) A) and B)
G) A) and C)

Question 8

-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 rectaF) A) and B)
G) None of the above B

Question 9

Where are the renal pyramids located within the kidney?

Accepted Answer

A)  Renal cortex
B)  Renal sinus
C)  Renal pelvis
D)  Renal papilla
E)  Renal medullaF) A) and C)
G) C) and E)

Question 10

Peritubular capillaries are associated with the convoluted tubules,while vasa recta are associated with the nephron loop.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

glomerulus

Question 12

Where in the urinary tract is transitional epithelium found?

Accepted Answer

A)  Urinary bladder
B)  Urethra
C)  Ureters,urinary bladder,and prostatic urethra
D)  Ureters
E)  Ureters and urinary bladderF) B) and E)
G) B) and D)

Question 13

Urination is triggered by a complex sequence of events called the ___________ reflex.

Accepted Answer

The answer of Urination is triggered by a complex sequence...

Question 14

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.F) A) and E)
G) None of the above

Question 15

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.F) A) and B)
G) C) and E)

Question 16

Which is not correct regarding the juxtaglomerular apparatus?

Accepted Answer

A)  The macula densa cells monitor electrolyte concentrations in tubular fluid.
B)  The macula densa cells are modified epithelial cells of the distal convoluted tubule.
C)  The juxtaglomerular cells are modified smooth muscle cells of the efferent arteriole.
D)  The juxtaglomerular cells release renin.
E)  Renin activates the renin-angiotensin pathway,resulting in aldosterone production.F) B) and D)
G) B) and E)

Question 17

-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 venuleF) A) and E)
G) B) and E)

Question 18

The average adult kidney weighs about 100 grams and measures about

Accepted Answer

A)  12 cm long,6.5 cm wide,and 2.5 cm thick.
B)  8 cm long,4 cm wide,and 1.5 cm thick.
C)  15 cm long,10.5 cm wide,and 4.5 cm thick.
D)  8 cm long,10.5 cm wide,and 2.5 cm thick.
E)  12 cm long,2.5 cm wide,and 8 cm thick.F) C) and D)
G) A) and E)

Question 19

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.F) A) and B)
G) A) and C)

Question 20

Which step(s) in the process of urine formation occur in the renal tubule?

Accepted Answer

A)  Filtration
B)  Secretion
C)  Reabsorption
D)  Filtration,secretion,and reabsorption
E)  Secretion and reabsorptionF) None of the above
G) B) and C) E

Exam 27: Urinary System

The internal urethral sphincter is formed by skeletal muscle fibers of the urogenital diaphragm.

Correct AnswerverifiedShow Answer

In anatomic position,the left kidney is inferior to the right kidney.

Correct AnswerverifiedShow Answer

Which is not of ureteric bud origin?

Correct AnswerverifiedShow Answer

Which portion of the renal tubule is described as having simple cuboidal epithelium with only a sparse brush border of microvilli?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The capillaries of the glomerulus differ from other capillary networks in the body because they

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

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

Correct AnswerverifiedB

Where are the renal pyramids located within the kidney?

Correct AnswerverifiedShow Answer

Peritubular capillaries are associated with the convoluted tubules,while vasa recta are associated with the nephron loop.

Correct AnswerverifiedShow Answer

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

Correct Answerverifiedglomerulus

Where in the urinary tract is transitional epithelium found?

Correct AnswerverifiedShow Answer

Urination is triggered by a complex sequence of events called the ___________ reflex.

Correct AnswerverifiedShow Answer

Filtration occurs because

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which is not correct regarding the juxtaglomerular apparatus?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The average adult kidney weighs about 100 grams and measures about

Correct AnswerverifiedShow Answer

The spongy urethra

Correct AnswerverifiedShow Answer

Which step(s) in the process of urine formation occur in the renal tubule?

Correct AnswerverifiedE

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B

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glomerulus

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E