Production Of Dilute And Comcentrated Urine

Question 1

When is urine diluted?

Answer 1

When ADH isn’t available

Question 2

Diuretics

Answer 2

Substances that slow renal absorption

Question 3

Osmolarity of glomerular filtrate

Answer 3

300

Question 4

How much more times can urine be more concentrate than plasma or filtrate ?

Answer 4

4 x

Question 5

The ability of ADH to cause excretion of concentrated urine depends on osmotic gradients

Answer 5

The osmotic gradient

Question 6

Three solutes that causes high osmolarity

Answer 6

Na, Cl and urea

Question 7

Countercurrent multiplication

Answer 7

The exchange between descending and thick ascending limb of nephron loop

Question 8

What does countercurrent refer to

Answer 8

Exchange takes place between the fluids moving opposite directions

Question 9

Descending limb is permeable to

Answer 9

H20

Question 10

Thin descending limb is not permeable to

Answer 10

Solutes

Question 11

Thick ascending limb is impermeable to

Answer 11

Water and solutes

Question 12

Thick ascending limb Is permeable to

Answer 12

Na and Cl

Question 13

Controls whether urine is diluted or not

Answer 13

ADH