Chap 25 Textbook Questions Flashcards Preview

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Flashcards in Chap 25 Textbook Questions Deck (30)
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1

Diabetes insipidus or diabetes mellitus would most
likely be indicated by ________.
a. anuria
b. polyuria
c. oliguria
d. none of the above

b. polyuria

2

The color of urine is determined mainly by ________.
a. diet
b. filtration rate
c. byproducts of red blood cell breakdown
d. filtration efficiency

c. by products of red blood cell breakdown

3

Production of less than 50 mL/day of urine is called
________.
a. normal
b. polyuria
c. oliguria
d. anuria

d. anuria

4

Peristaltic contractions occur in the ________.
a. urethra
b. bladder
c. ureters
d. urethra, bladder, and ureters

c. ureters

5

Somatic motor neurons must be ________ to relax the
external urethral sphincter to allow urination.
a. stimulated
b. inhibited

b. inhibited

6

Which part of the urinary system is not completely
retroperitoneal?
a. kidneys
b. ureters
c. bladder
d. nephrons

c. bladder

7

The renal pyramids are separated from each other by
extensions of the renal cortex called ________.
a. renal medulla
b. minor calyces
c. medullary cortices
d. renal columns

d. renal columns

8

The primary structure found within the medulla is the
________.
a. loop of Henle
b. minor calyces
c. portal system
d. ureter

a. loop of Henle

9

The right kidney is slightly lower because ________.
a. it is displaced by the liver
b. it is displace by the heart
c. it is slightly smaller
d. it needs protection of the lower ribs

a. it is displaced by the liver

10

Blood filtrate is captured in the lumen of the ________.
a. glomerulus
b. Bowman’s capsule
c. calyces
d. renal papillae

b. Bowman’s capsule

11

What are the names of the capillaries following the
efferent arteriole?
a. arcuate and medullary
b. interlobar and interlobular
c. peritubular and vasa recta
d. peritubular and medullary

c. peritubular and vasa recta

12

The functional unit of the kidney is called ________.
a. the renal hilus
b. the renal corpuscle
c. the nephron
d. Bowman’s capsule

c. the nephron

13

________ pressure must be greater on the capillary side
of the filtration membrane to achieve filtration.
a. Osmotic
b. Hydrostatic

b. Hydrostatic

14

Production of urine to modify plasma makeup is the
result of ________.
a. filtration
b. absorption
c. secretion
d. filtration, absorption, and secretion

d. filtration, absorption, and secretion

15

Systemic blood pressure must stay above 60 so that the
proper amount of filtration occurs.
a. true
b. false

b. false

16

Aquaporin channels are only found in the collecting
duct.
a. true
b. false

b. false

17

Most absorption and secretion occurs in this part of the
nephron.
a. proximal convoluted tubule
b. descending loop of Henle
c. ascending loop of Henle
d. distal convoluted tubule
e. collecting ducts

a. proximal convoluted tubule

18

The fine tuning of water recovery or disposal occurs in
________.
a. the proximal convoluted tubule
b. the collecting ducts
c. the ascending loop of Henle
d. the distal convoluted tubule

b. the collecting ducts

19

Vasodilation of blood vessels to the kidneys is due to
________.
a. more frequent action potentials
b. less frequent action potentials

b. less frequent action potentials

20

When blood pressure increases, blood vessels
supplying the kidney will ________ to mount a steady rate
of filtration.
a. contract
b. relax

a. contract

21

Which of these three paracrine chemicals cause
vasodilation?
a. ATP
b. adenosine
c. nitric oxide

a. ATP

22

What hormone directly opposes the actions of
natriuretic hormones?
a. renin
b. nitric oxide
c. dopamine
d. aldosterone

d. aldosterone

23

Which of these is a vasoconstrictor?
a. nitric oxide
b. natriuretic hormone
c. bradykinin
d. angiotensin II

d. angiotensin II

24

What signal causes the heart to secrete atrial natriuretic
hormone?
a. increased blood pressure
b. decreased blood pressure
c. increased Na+
levels
d. decreased Na+
levels

a. increased blood pressure

25

Which of these beverages does not have a diuretic
effect?
a. tea
b. coffee
c. alcohol
d. milk

d. milk

26

Progesterone can bind to receptors for which hormone
that, when released, activates water retention?
a. aldosterone
b. ADH
c. PTH
d. ANH

b. ADH

27

Renin is released in response to ________.
a. increased blood pressure
b. decreased blood pressure
c. ACE
d. diuretics

b. decreased blood

28

Which step in vitamin D production does the kidney
perform?
a. converts cholecalciferol into calcidiol
b. converts calcidiol into calcitriol
c. stores vitamin D
d. none of these

b. converts calcidiol into calcitriol

29

Which hormone does the kidney produce that
stimulates red blood cell production?
a. thrombopoeitin
b. vitamin D
c. EPO
d. renin

c. EPO

30

. If there were no aquaporin channels in the collecting
duct, ________.
a. you would develop systemic edema
b. you would retain excess Na+
c. you would lose vitamins and electrolytes
d. you would suffer severe dehydration

d. you would suffer severe dehydration