Chapter 26: The Urinary System Flashcards Preview

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Flashcards in Chapter 26: The Urinary System Deck (57)
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1

urine leaving the kidneys travels along the following sequential pathway to the exterior:

ureters, urinary bladder, urethra

2

which organ or structure does not belong to the urinary system?

gallbladder

3

seen in section, the kidney is divided into...

an outer cortex and an inner medulla

4

the basic functional unit in the kidney is the...

nephron

5

the three concentric layers of connective tissue that protect and anchor the kidneys are the...

fibrous capsule, perinephritic fat capsule, and renal fascia

6

blood supply to the proximal and distal convoluted tubules of the nephron is provided by the...

peritubular capillaries

7

in a nephron, the long tubular passageway through which the filtrate passes includes the...

proximal and distal convoluted tubules and nephron loop

8

the primary sites of regulating water, sodium, and potassium ion loss in the nephron are the...

nephron loop and collecting duct

9

the primary site for secretion of substances into the filtrate is the...

distal convoluted tubule

10

the initial factor that determines if urine production occurs is...

filtration

11

the three processes involved in urine formation are...

filtration, reabsorption, and secretion

12

the filtration of plasma that generates approximately 180 liters/day of filtrate occurs in the...

renal corpuscle

13

approximately 60-70 percent of the water is reabsorbed in the...

proximal convoluted tubule

14

the portion of the renal tubule that is under aldosterone stimulation is the...

distal convoluted tubule

15

the proximal convoluted tubule and the distal convoluted tubule are seperated by the U-shaped tube called the...

nephron loop

16

the location and orientation of the carrier proteins determine whether a particular substance is reabsorbed or secreted in...

1. active transport
2. cotransport
3. countertransport

17

dilation of the afferent arteriole, contraction of mesengial cells, and constriction of the efferent arteriole causes...

elevation of glomerular blood pressure

18

the glomerular filtration rate is regulated by...

1. autoregulation
2. hormonal regulation
3. autonomic regulation

19

the pressure that tends to draw water out of the filtrate and into the plasma, opposing filtration, is the...

blood colloid osmotic pressure

20

the three primary waste products found in a representative urine sample are...

ions, metabolites, and nitrogenous

21

the average pH for normal urine is about...

6.0

22

the mechanisms responsible for the reabsorption of organic molecules from the tubular fluid are...

cotransport and facilitated diffusion

23

countertransport resembles cotransport in all respects except...

the two transported ions move in opposite directions

24

the primary site of nutrient reabsorption in the nephron is the...

proximal convoluted tubule

25

in countercurrent multiplication, the countercurrent refers to the fact that an exchange occurs between...

fluids moving in opposite directions

26

the result of the countercurrent multiplication mechanism is...

increased solute concentration in the descending limb of the nephron loop

27

when anitdiuretic hormone levels rise, the distal convoluted tubule becomes...

more permeable to water; water reabsorption increases

28

the result of the effect of aldosterone along the DCT, the collecting tubule and the collecting duct is...

increased conservation of sodium ions and water

29

the openings of the urethra and the two ureters mark an area on the internal surface of the urinary bladder called the...

trigone

30

when urine leaves the kidney, it travels to the urinary bladder via the...

ureters