Regulation of Electrolytes

Question 1

What electrolyte drives water reabsorption?

Answer 1

Na+

Question 2

the reabsorption of what is the major energy expenditure of the kidneys?

Answer 2

Na+

Question 3

where is the concentration of urine the greatest?

Answer 3

in the juxtamedullary nephrons

Question 4

the descending loop of henele is permeable/not permeable to water and the ascending loop is permeable/not permeable to water

Answer 4

the descending loop is permeable to water and the ascending loop is permeable

Question 5

Distal tubule and collecting ducts recover ~__% of filtered Na+

Answer 5

9%

Question 6

in what two areas is the osmolarity inside and outside the tubule the same?

Answer 6

the promiximal tubule and the loop of henele

Question 7

water permeability is dependent upon ADH in what three areas?

Answer 7

the distal tubule, the collecting tubulue, and the inner medullary collecting tubule

Question 8

thiazide diuretics inhibit the Na+?Cl- co-transporter in the thick ascending limb (T/F)

Answer 8

false

Question 9

Urine flow varies from _____mL/min to ____mL/min

Answer 9

0.3 mL/min to 20 mL/min

Question 10

normal urine flow is ____mL/min

Answer 10

1 mL/min

Question 11

Osmolarity of urine varies from _____ mOsm/L to ____ mOsm/L

Answer 11

50 mOsm/L to 1400 mOsm/L

Question 12

normal urine osmolarity is ___-____mOsm/L

Answer 12

600-800 mOsm/L