Question 31 (of 74) 31. 0.20 points Indicate whether each of the following label

Question

Question 31 (of 74) 31. 0.20 points Indicate whether each of the following labels relates to the nephron loop or the vasa recta of the countercurrent mechanism. without altoring the renal medula Functions to provide Permeable to only waterActive transport of sodium out of the ascending limb gradient of the kdneyosmotic gradiont of the on the descending limb Functions to provide nutrients to the kidney cells Freely permeable to water and Na throughout structure Countercurrent multiplier xygen to the kidney Nephron loop Vasa recta esc F5 FI F2 F3 4

Explanation / Answer

Nephron loop:

1. Countercurrent multiplier.

2. Permeable to water on descending limb only.

3. Increase osmotic gradient of kidney medulla.

4. Active transport of Na ions out of ascending limb.

Vasa recta:

1. Functions to provide oxygen to kidney cells.

2. Provide blood supply without altering the osmotic gradient of renal medulla.

3. Freely permeable to water and sodium ions throughout the structure.

4. Function to provide nutrients to the kidney.

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