CHAPTER 24
The Urinary System
24) The macula densa cells are chemoreceptors that respond to changes in the urea content of the
filtrate.
Answer: FALSE
Diff: 1
Page Ref: 844-845
25) Blood in the urine may be a symptom of bladder cancer.
Answer: TRUE
Diff: 2
Page Ref: 861; Tbl. 24.2
26) Obligatory water reabsorption involves the movement of water along an osmotic gradient.
Answer: TRUE
Diff: 3
Page Ref: 851
27) Having a kinked ureter is called renal ptosis.
Answer: FALSE
Diff: 3
Page Ref: 837
Multiple-Choice Questions
1) The mechanism that establishes the medullary osmotic gradient depends most on the
permeability properties of the ________.
A) loop of Henle
B) glomerular filtration membrane
C) collecting duct
D) distal convoluted tubule
Answer: A
Diff: 2
Page Ref: 855-856
2) Urine passes through the ________.
A) renal hilum to the bladder to the ureter
B) pelvis of the kidney to ureter to bladder to urethra
C) glomerulus to ureter to renal tubule
D) hilum to urethra to bladder
Answer: B
Diff: 1
Page Ref: 838
3) Which of the following is not associated with the renal corpuscle?
A) a podocyte
B) a vasa recta
C) a fenestrated capillary
D) an efferent arteriole
Answer: B
Diff: 1
Page Ref: 840
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