Concentrated Urine Flashcards
1
Q
What parts of the Kidney create concentrated urine?
A
Loop of Henle
Collecting Duct
2
Q
What adaptation does the Loop of Henle have?
A
Countercurrent multiplier effect
3
Q
What is secreted by the Loop of Henle?
A
NaCl secreted by ascending limb
H20 secreted by descending limb
4
Q
What is the salt concentration in the medulla like?
A
High salt concentration in lower medulla.
Low salt concentration in upper medulla.
5
Q
Why can’t water diffuse out of the ascending limb?
A
Ascending limb is impermeable to water
6
Q
Why can water diffuse out of descending limb?
A
Descending limb is permeable to water. Fluid in tubule is now more concentrate.
