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Functions of the Kidneys

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Questions and Answers

What is one of the important functions of the kidneys?

Regulate heart rate

Produce hormones for growth

Rid the body of waste materials (correct)

Control the body's temperature

How do the kidneys help in maintaining a stable internal environment?

By producing essential vitamins

By balancing fluid volume and electrolyte composition (correct)

By regulating body temperature

By controlling blood sugar levels

What is the primary way the kidneys clear unwanted substances from the blood?

Transporting them to the lungs for removal

Breaking them down into harmless molecules

Releasing them through sweat

Excreting them in the urine (correct)

Which organ plays a key role in maintaining the balance between intake and output of water and electrolytes in the body?

Kidneys (B) Signup and view all the answers

What happens to substances that are needed by the body after being filtered by the kidneys?

They are returned to the blood (D) Signup and view all the answers

In what form do the kidneys remove substances from the blood that need to be excreted?

As urine through urination (A) Signup and view all the answers

What is one of the main functions of the kidneys described in the text?

Regulation of water and electrolyte balances (A) Signup and view all the answers

What is one of the waste products eliminated by the kidneys?

Uric acid (C) Signup and view all the answers

How do the kidneys respond to a sudden increase in sodium intake?

By increasing sodium excretion to match the intake (A) Signup and view all the answers

What triggers hormonal changes and other compensatory responses in the body when there is an accumulation of sodium?

Accumulation of sodium (A) Signup and view all the answers

Why do the kidneys need to adjust their excretion rates according to a person's eating and drinking habits?

To maintain water and electrolyte balance (B) Signup and view all the answers

What can happen if intake exceeds excretion for a specific substance in the body?

The substance will accumulate in the body (C) Signup and view all the answers