Kidney Function Quiz

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Questions and Answers

What is the primary function of the kidneys?

To increase blood pressure
To filter oxygen from the blood
To digest food particles
To produce and regulate urine (correct)

How much of the cardiac output do the kidneys typically receive?

75 percent
50 percent
25 percent (correct)
10 percent

Which of the following substances is primarily excreted in urine?

Urea (correct)
Oxygen
Glucose
Proteins

What do the kidneys retain or remove from the blood?

<p>Water and other components (C)</p> Signup and view all the answers

Which organs are considered the major excretory organs of the urinary system?

<p>Kidneys and bladder (C)</p> Signup and view all the answers

Flashcards

Kidneys

The kidneys are two bean-shaped organs located in the back of the abdomen, responsible for filtering waste products from the blood and producing urine.

What is Urine?

Urine is a fluid that is produced by the kidneys and contains water, ions, urea (nitrogen waste), and small soluble substances like glucose.

Blood Flow to Kidneys

The kidneys receive a significant amount of blood - around 25% of the total blood pumped by the heart.

Kidney Function

The kidneys regulate the balance of water and other substances in the blood by either retaining or removing them.

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Urinary System

The kidneys are a crucial part of the urinary system which is responsible for filtering and eliminating waste products from the body.

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Study Notes

Kidney Function

Kidneys are major excretory organs in the urinary system.
They produce urine, a fluid containing water, ions, urea (nitrogenous waste), and small soluble substances like glucose.
Kidneys filter and process 25% of the cardiac output (blood circulation).
They regulate the retention or removal of water and other components of blood.