Chapter 25 Urinary System

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Urinary System
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1

The glomerular capillaries differ from other capillary networks in the body because they
A. Have a larger are
B. Are derived from and drain into arterioles
C. Are not made of endothelium
D. Are sites of gas exchange

B. Are derived from and drain into arterioles

2

Glucose is not normally found in the urine because it
A. Does not pass through the walls of the glomerulus
B. Is kept in the blood by colloid osmotic pressure
C. Is reabsorbed by the tubule cells
D. Is removed by the body cells before the blood reaches the kidney

C. Is reabsorbed by the tubule cells

3

Filtration of the glomerulus is located within
A. Renal Corpuscle
B. Renal Tubule
C. Renal Pelvis
D. Renal Colums

A. Renal Corpuscle

4

Filtration at the glomerulus is inversely related to
A. Water Reabsorption
B. Capsular Hydrostatic Pressure
C. Arterial Hydrostatic Pressure
D. The Acidity of Urine

B. Capsular Hydrostatic Pressure

5

The majority of nephrons are located in the
A. Vasa Recta
B. Medulla
C. Cortex
D. Pelvis

C. Cortex

6

The presence of ADH causes an individual to excrete..
A. Sugar
B. Less water
C. More water
D. More urine

B. Less water

7

The higher the plasma concentration of aldosterone, the more efficiently the kidney..
A. Will conserve Na+
B. retain K+
C. Lose more water
D. Secrete Na+

A. Will conserve Na+

8

Which of the following materials would not be filtered from the blood at the glomerulus?
A. Amino Acids
B. Large Proteins
C. Glucose
D. Electrolytes

B. Large Proteins

9

The sympathetic activation of the nerve fibers in the nephron causes
A. Regulates blood flow to glomerulus
B. Stimulate release of renin
C. Removes water from body
D. Both a and b are correct

D. Both A and B

10

When ADH rises the amount of water reabsorbed decreases

False

11

The control of blood pH by kidneys during acidosis involves the secretion of H+ ion and reabsorption of Co3H- from the tubular fluid

True

12

When osmotic concentration increases in ECF, such as eating salty food, osmoreceptors in hypothalamus secrete
A. Renin
B. ANP
C. Aldosterone
D. ADH

D. ADH

13

The most common problems with electrolyte balance are caused by imbalance of
A. Calcium Ion
B. Chloride Ion
C. Potassium Ion
D. Sodium Ion

D. Sodium Ion

14

The higher the plasma concentration of aldosterone, the more efficiently the kidney will conserve sodium ion

True

15

Which of the following accelerate reabsorption of sodium in the DCT
A. ADH
B. Renin
C. Aldosterone
D. Erythropoietin

C. Aldosterone

16

Damage to the renal medulla would interfere first with the functioning of the..
A. Glomerular capsules
B. Distal Convoluted Tubules
C. Collecting Ducts
D. Proximal Convoluted Tubules

C. Collecting Ducts

17

Which is reabsorbed by the proximal convoluted tubule cells?
A. Na+
B. K+
C. Amino Acids
D. Glucose
E. All of these

E. All of these

18

Kidneys control blood pH by excreting..
A. H2CO3
B. Ammonia
C. H+
D. CO2
E. Urea

C. H+

19

The distal convoluted tubule is an important site for
A. Active secretion of ions
B. Active secretion of acids
C. Selective reabsorption of NA+
D. All of these

D. All of these

20

Which is not part of the urinary system?
A. Kidneys
B. Ureters
C. Urethra
D. Ileum

D. Ileum

21

Which hormone is produced in the kidneys
A. Renin
B. Erythropoietin
C. Cortisol
D. Both A and B

D. Both A and B

22

Proximal convoluted tubule are composed of simple squamous cells

False

23

Descending Segment of Loop of Henle is permeable to sodium ions

False

24

The filtration membrane in glomerulus is significantly more permeable than other capillaries

True

25

pH of the urine is normally slightly acidic pH 6

True

26

Specific gravity of urine ranges from 11.001 to 12.035

False

27

Which of these substances is not filtered in renal corpuscle
A. Sodium
B. Large Proteins and RBC
C. Water
D. K+

B. Large Proteins and RBC

28

Sodium reabsorption is almost always by active transport

True

29

Stimulation of sympathetic nervous system causes constriction of renal blood vessels and Glomerular Filtration Rate will be reduced

True

30

Changes in GFR normally result from changes in glomerular blood pressure

True

31

The glomerulus and its Bowman's capsule are collectively called Renal Glomerulus

False

32

In normal people, glucose is reabsorbed by the distal convoluted tubule cells

False

33

The urethra carries the urine from the kidneys to the bladder

False

34

Pigments in beets are not normally found in the urine because it..
A. Does not pass through the walls of the glomerulus
B. Is kept in the blood by colloid osmotic pressure
C. Is reabsorbed by the tubular cells
D. Is reabsorbed in duodenum before the blood reaches the kidney

A. Does not pass through the walls of the glomerulus

35

Urine collection occurs in what area of the kidney
A. Cortex
B. Medulla
C. Columns
D. Pelvis

D. Pelvis

36

The lowest blood concentration of nitrogenous waste occurs in the
A. Hepatic Vein
B. Inferior Vena Cava
C. Renal Artery
D. Renal Vein

D. Renal Vein

37

If a freshly voided urine sample contains excessive amounts of urochrome, it has
A. An ammonia-like odor
B. a pH below normal
C. a dark yellow color
D. a pH above normal

C. a dark yellow color

38

Conditions such as diabetes mellitus and starvation is closely linked to
A. Ketonuria
B. Pyuria
C. Albuminuria
D. Hematuria

A. Ketonuria

39

Which of the following is true about ADH?
A. It promotes obligatory water reabsorption
B. It is secreted in response to an increase in extracellular fluid osmolality
C. It causes insertion of aquaporins in the PCT
D. it promotes Na+ reabsorption

B. It is secreted in response to an increase in extracellular fluid osmolality