Which organ helps your body retain water when you are dehydrated? (a) Stomach (b) Kidneys (c)...

Question:

Which organ helps your body retain water when you are dehydrated?

(a) Stomach

(b) Kidneys

(c) Liver

(d) Small intestine.

Organs:

Organs are biological structures in the body, which are composed of different tissues that work together to perform specialized functions. The stomach, kidney, liver, intestines, brain, and lungs are examples of organs.

Answer and Explanation:

The correct answer is (b): kidneys.

Kidneys are part of the urinary system. The primary function of these bean-shaped organs is to filter blood in order to remove waste products via urine. Since urine is water-based, kidneys can also regulate the water balance in the body by increasing or decreasing the water output when they produce urine. For instance, when the body is dehydrated, the kidneys retain more water through reabsorption and produce more concentrated urine, which has a smaller water volume. But when there is an excess of fluids in the body, the kidneys produce more dilute urine, expelling larger volumes of water.


Learn more about this topic:

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Kidney Lesson for Kids: Function & Facts

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Chapter 2 / Lesson 58
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