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Nuetrik [128]
3 years ago
6

In the renal system, how does the juxtamedullary nephrons concentrate urine?

Medicine
1 answer:
docker41 [41]3 years ago
6 0

Answer:

Loop of Henle lenght

Explanation:

Juxtamedullary nephrons have a longer loop of Henle that cortical nephrons and as we know this loop has a great function reabsorving water, the longer it is more water is reabsorved. The descending portion of the loop is permeable to ions but not to water so this portion reaborves a great quantity of water. Then in the ascending loop is the opposite, it is permeable to water but not to ions. The ions reabsorved in the ascending loop (20-25% of the Na+) are responsable of the water reabsorved in the descending loop. The longer the loop is more water and ions are reabsorved.

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Read 2 more answers
Exposure Status Cases Controls Yes 11 108 No 5 436 Total 16 544 Calculate the odds ratio. What do you conclude based upon your r
seraphim [82]

Answer:

Ratio = 8.8

The exposure may be risk factor.

Explanation:

Given

\begin{array}{ccc}{Exposure\ Status} & {Cases} & {Control} & {Yes} & {11} & {108} & {No} & {5} & {436} & {Total} & {16} & {544} \ \end{array}

Required

The odd ratio

First, we calculate the odds of exposure using:

Odds = \frac{With\ Exposure(Yes)}{Without\ Exposure (No)}

For cases, we have:

Odds_{Cases} = \frac{11}{5}

Odds_{Cases} = 2.20

For controls, we have:

Odds_{Controls} = \frac{108}{436}

Odds_{Controls} = 0.25

So, the odds' ratio is:

Ratio = \frac{Odds_{Cases}}{Odds_{Controls}}

Ratio = \frac{2.20}{0.25}

Ratio = 8.8

Conclusion about the odds' ratio

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So, we can conclude that the exposure may be risk factor.

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3 years ago
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