BIO202_MH_V3
Topic 9: Urinary System
Started on Friday, October 22, 2021, 6:52 PM
State Finished
Completed on Friday, October 22, 2021, 7:15
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Time taken 23 mins 23 secs
Grade 40.00 out of 40.00 (100%)
Question 1
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All of the following are located in the renal cortex, except
Select one:
a. collecting ducts.
b. renal corpuscles.
c. proximal convoluted tubules.
d. distal convoluted tubules.
e. afferent arteriole.
Question 2
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Arrange the following in the sequence in which filtrate moves through them.
(1) loop of Henle
(2) Bowman's capsule
(3) distal convoluted tubule
(4) proximal convoluted tubule
Select one:
a. 1, 2, 3, 4
b. 4, 2, 1, 3
c. 2, 4, 3, 1
d. 2, 4, 1, 3
e. 3, 4, 1, 2
Question 3
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Filtration slits is the name given to the
Select one:
a. points where the afferent arterioles enter the renal corpuscle.
b. openings between the endothelial cells of the glomerular capillaries.
c. gaps between the podocyte processes in the visceral layer of Bowman's capsule.
d. basement membrane of the glomerular endothelium.
e. active transport channels.
Question 4
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An obstruction in the afferent arteriole would reduce the flow of blood into the
Select one:
a. glomerulus.
b. renal artery.
c. macula densa.
d. efferent arteriole.
e. arcuate artery.
Question 5
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Which of the following structures is a capillary?
Select one:
a. glomerulus
b. loop of Henle
c. collecting duct
d. Bowman's capsule
e. proximal convoluted tubule
Question 6
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The structural and functional units of the kidney are called
Select one:
a. nephrons.
b. renal papillae.
c. renal pyramids.
d. renal columns.
e. renal tubes.
Question 7
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The portion of the kidney that is composed of cone-shaped renal pyramids is called the
Select one:
a. cortex.
b. medulla.
c. pelvis.
d. calyx.
e. columns.
Question 8
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Blood vessels, nerves, and the ureter enter and leave the kidney at the
Select one:
a. hilum.
b. renal fascia.
c. renal pelvis.
d. renal capsule.
e. renal pyramid.
Question 9
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To calculate plasma clearance of any substance, it is necessary to know the
Select one:
a. quantity of urine produced per minute.
b. concentration of the cleared substance in the urine.
c. concentration of the cleared substance in the blood.
d. blood volume.
e. quantity of urine produced per minute, the concentration of the cleared substance in the
urine, and the concentration of the cleared substance in the blood.
Question 10
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Blood loss that occurs during surgery will stimulate cells in the
Select one:
a. efferent arteriole.
b. wall of the right atrium.
c. proprioceptors.
d. juxtaglomerular apparatus.
e. None of these choices is correct.
Question 11
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Stretch receptors in the atria are responsible for the secretion of
Select one:
a. ADH.
b. renin.
c. aldosterone.
d. atrial natriuretic hormone.
e. angiotensin.
Question 12
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As ADH production declines,
Select one:
a. glomerular filtration increases.
b. potassium reabsorption increases.
c. reabsorption of water increases.
d. the urine volume increases.
e. the blood volume increases.
Question 13
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If the tubular maximum for a particular amino acid is 200 mg/100 ml and the concentration
of that amino acid in the blood is 100 mg/100 ml, the amino acid
Select one:
a. will be actively secreted into the filtrate.
b. will be completely reabsorbed by the tubule cells.
c. will appear in the urine.
d. will not appear in the urine.
e. None of these choices is correct.
Question 14
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In the myogenic mechanism of autoregulation, what is the response to an increase in blood
pressure in the afferent arteriole?
Select one:
a. constriction of the glomerulus
b. dilation of the afferent arteriole
c. dilation of the efferent arteriole
d. constriction of the afferent arteriole
Question 15
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Removal of the posterior pituitary will immediately cause
Select one:
a. a decrease in urine volume.
b. an increase in urine volume.
c. no change in urine volume.
Question 16
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Question textFiltrate reabsorption, which occurs regardless of the concentration and volume of urine
produced, is referred to as
Select one:
a. active.
b. obligatory.
c. facultative.
d. countercurrent.
e. nonessential.
Question 17
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Which of the following is NOT an effect of aging on the kidneys?
Select one:
a. decrease in kidney size
b. loss of nephrons
c. decreased response to hormonal control of urine volume
d. a marked decrease in the ability to maintain homeostasis
Question 18
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Effects of aging on the kidneys include all of the following, except
Select one:a. an increased ability to eliminate uric acid and creatine from the blood.
b. a gradual decrease in the size of the kidneys.
c. a gradual decrease in blood flow through the kidneys.
d. a loss of general function.
e. a decline in absorption and secretion.
Question 19
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With aging, a loss of inhibitory action potentials to the sacral region of the spinal cord results
in
Select one:
a. increased bladder capacity.
b. voluntary micturition.
c. continuous dribbling of urine.
d. uncontrollable micturition.
e. lack of control of internal sphincter.
Question 20
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In order to regulate the pH of extracellular fluid, the kidneys are able to adjust the excretion
of:
Select one:
a. hydrogen ions.b. calcium.
c. sodium.
d. magnesium.
e. potassium. [Show Less]