Renal

Question 0

% NaCl, H2O, Ca++ reabsorbed in proximal tubule

Answer 0

67% (entire proximal tubule)

Question 1

2 solutes that are filtered and secreted

Answer 1

K+ and Urea

Question 2

% HCO3 reabsorbed in proximal tubule

Answer 2

85-99%

Question 3

% Urea reabsorbed in proximal tubule

Answer 3

50%

Question 4

% Phosphate reabsorbed in proximal tubule

Answer 4

85%

Question 5

% Magnesium reabsorbed in proximal tubule

Answer 5

30%

Question 6

% Amino Acids and Glucose reabsorbed in proximal tubule

Answer 6

100%

Question 7

Carbonic Anhydride Inhibitor

Answer 7

Mild Diuretic - inhibits HCO3 reabsorption and therefore Na+ reabsorption

Question 8

Early proximal tubule

Answer 8

NaHCO3 reabsorption

Accounts for 20-25% Na+ reabsorption

Question 9

Late Proximal Tubule

Answer 9

NaCl Passive Reabsorption

~35% Na+ reabsorption
Concentrated Cl due to water, Na+, Urea, etc. reabsorption.

Question 10

Glomerulotubular Balance

Answer 10

Ensures that constant fraction of filtered Na+ (67%) is reabsorbed via filtration/reabsorption coupling

If GFR rises or falls, the rate of tubular reabsorption will rise or fall proportionally,