What do the lungs do?

Exchange oxygen and carbon dioxide

What does the spleen do?

Filters blood and helps fight infection

What does the stomach do?

Breaks down food with acid and enzymes

Body Organ Functions Quiz With Answers: Test Your Knowledge

This body organ functions quiz covers what the heart, lungs, brain, liver, kidneys, stomach, pancreas, spleen, skin and intestines do. Test your knowledge with 10 questions about the jobs of the body's major organs.

Start Body Organ Functions Quiz With Answers Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Heart
What is the heart's main job?
Lungs
What do the lungs do?
Liver
Which organ detoxifies chemicals and makes bile?
Kidneys
What do kidneys filter?
Pancreas
Which organ makes insulin and digestive enzymes?
Spleen
What does the spleen do?
Stomach
What does the stomach do?
Skin
Which organ helps regulate temperature by sweating?
Brain
Which organ controls thoughts and movement?
Without
Which organ can a person live without?

Explanations: answer key for all 10 questions

Q1: What is the heart's main job?
Answer: Pumping blood
It beats about 100,000 times a day.
Q2: What do the lungs do?
Answer: Exchange oxygen and carbon dioxide
Gas exchange happens in alveoli.
Q3: Which organ detoxifies chemicals and makes bile?
Answer: Liver
It has hundreds of functions.
Q4: What do kidneys filter?
Answer: Blood
They make urine.
Q5: Which organ makes insulin and digestive enzymes?
Answer: Pancreas
It is both an endocrine and digestive organ.
Q6: What does the spleen do?
Answer: Filters blood and helps fight infection
It removes old red cells.
Q7: What does the stomach do?
Answer: Breaks down food with acid and enzymes
Food then moves to the small intestine.
Q8: Which organ helps regulate temperature by sweating?
Answer: Skin
It is the largest organ.
Q9: Which organ controls thoughts and movement?
Answer: Brain
It uses about 20% of the body's energy.
Q10: Which organ can a person live without?
Answer: Spleen
Others take over some of its functions.

Body Organ Functions Quiz – Organs at Work

Organs are groups of tissues working together for a specific job. The heart pumps blood, the lungs exchange gases, the brain controls the body and the stomach and intestines digest food.

Other organs keep the body balanced. The liver processes nutrients and toxins, the kidneys filter blood, the pancreas controls blood sugar and the spleen filters blood and supports immunity. Skin protects and cools the body.

Organs work in systems, such as the circulatory, respiratory and digestive systems. Some organs, like the spleen, gallbladder and appendix, can be removed while people stay healthy, and transplants can replace failing organs.

What This Quiz Teaches

This quiz is for students learning organ functions.

What the heart and lungs do
What the liver does
What the pancreas makes
What the spleen does
Which organs we can live without

Did You Know?

Organ donors can save several lives.
The appendix may support gut bacteria.
The gallbladder stores bile.
The thymus shrinks after puberty.
The body has about 78 organs by some counts.