Respuesta :
countercurrent exchanger:
- vasa recta
- functions to provide nutrients to the kidney parenchyma
- provides blood supply without altering the osmotic gradient of the renal medulla
- functions to provide oxygen to the kidney parenchyma
- permeable to water and Na+ on both sections of the loop
countercurrent multiplier:
- nephron loop
- active transport of sodium out of the ascending limb
- provides a constant, rich supply of particles to the renal medulla
- permeable to only water on the descending limb of the loop
- increases the osmotic gradient of the kidney medulla
What is countercurrent multiplier?
- The process of creating an osmotic gradient in the kidneys known as countercurrent multiplication allows you to reabsorb water from the tubular fluid and produce concentrated urine.
What does countercurrent exchanger mean?
- A biological mechanism intended to promote the greatest exchange possible between two fluids.
- The two fluids must flow in opposing directions and have a concentration gradient between them for the mechanism to work, fluid One.
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