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Chapter 25 Urinary System

front 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

back 1

B. Are derived from and drain into arterioles

front 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

back 2

C. Is reabsorbed by the tubule cells

front 3

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

back 3

A. Renal Corpuscle

front 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

back 4

B. Capsular Hydrostatic Pressure

front 5

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

back 5

C. Cortex

front 6

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

back 6

B. Less water

front 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+

back 7

A. Will conserve Na+

front 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

back 8

B. Large Proteins

front 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

back 9

D. Both A and B

front 10

When ADH rises the amount of water reabsorbed decreases

back 10

False

front 11

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

back 11

True

front 12

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

back 12

D. ADH

front 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

back 13

D. Sodium Ion

front 14

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

back 14

True

front 15

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

back 15

C. Aldosterone

front 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

back 16

C. Collecting Ducts

front 17

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

back 17

E. All of these

front 18

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

back 18

C. H+

front 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

back 19

D. All of these

front 20

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

back 20

D. Ileum

front 21

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

back 21

D. Both A and B

front 22

Proximal convoluted tubule are composed of simple squamous cells

back 22

False

front 23

Descending Segment of Loop of Henle is permeable to sodium ions

back 23

False

front 24

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

back 24

True

front 25

pH of the urine is normally slightly acidic pH 6

back 25

True

front 26

Specific gravity of urine ranges from 11.001 to 12.035

back 26

False

front 27

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

back 27

B. Large Proteins and RBC

front 28

Sodium reabsorption is almost always by active transport

back 28

True

front 29

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

back 29

True

front 30

Changes in GFR normally result from changes in glomerular blood pressure

back 30

True

front 31

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

back 31

False

front 32

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

back 32

False

front 33

The urethra carries the urine from the kidneys to the bladder

back 33

False

front 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

back 34

A. Does not pass through the walls of the glomerulus

front 35

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

back 35

D. Pelvis

front 36

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

back 36

D. Renal Vein

front 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

back 37

C. a dark yellow color

front 38

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

back 38

A. Ketonuria

front 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

back 39

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