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Humans have approximately 32 permanent teeth.

The Human Body

The human body is an amazing system. In KS2 Science, pupils learn how organs, bones, and muscles work together to keep us alive, healthy, and moving every day.

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Fascinating Fact:

The brain controls everything we do, from thinking to moving and even breathing.

In KS2 Science, pupils study the human body as a network of systems. The skeleton gives structure, muscles allow movement, and organs like the heart and lungs keep us alive by working nonstop.

Key Terms

Skeleton: The framework of bones that supports the body and protects organs.
Muscles: Tissues that contract and relax to move different parts of the body.
Organs: Parts of the body with special jobs, like the heart pumping blood or the lungs taking in air.

Frequently Asked Questions (Click to see answers)

What are the main systems of the human body?

The main systems are the skeletal, muscular, circulatory, respiratory, digestive, and nervous systems. Each plays a key role in keeping the body working.

Why is the skeleton important?

The skeleton supports the body, protects organs, and works with muscles to help us move. Without bones, we would not be able to stand upright.

How does the brain control the body?

The brain sends electrical signals through nerves to control movement, senses, and automatic functions like breathing and heartbeat.

Try These Related Quizzes

1 .

Which parts of the body allow us to move?

Muscles

Joints

Skeleton

All of the above

You use your joints, muscles and skeleton in order to move - they wouldn't work without each other

2 .

Which of these organs is not part of the circulatory system?

Heart

Brain

Lungs

Blood vessels

The brain is the hub of the central nervous system

3 .

How many types of teeth do humans have?

One

Two

Three

Four

Humans have premolars, molars, canines and incisors

4 .

Which of these is true?

Every part of the body is an organ, except the skeleton

Only internal body parts are organs

An organ is a body part which has a specific function (job)

An organ is another word for a sense

The organs each do different jobs - the heart pumps blood around the body, the stomach starts to digest food... etc.

5 .

Approximately how many permanent teeth do humans have?

Humans have about 32 permanent teeth, but only around 20 milk teeth

6 .

Which of these words correctly describes the lungs?

Rigid

Spongy

Tough

Unimportant

Lungs appear spongy because they are full of hundreds of millions of tiny air sacs called alveoli

7 .

Which teeth are used for grinding food?

Molars

Incisors

Canines

All of the above

The incisors are for biting and cutting pieces of food - the canines are used to tear food, particularly meat

8 .

Which of these is not a system in the human body?

The nervous system

The immune system

The contraflow system

The reproductive system

Contraflow systems are used to control traffic!

9 .

Which of these organs is part of the digestive system?

Small intestine

Heart

Eyes

Kidneys

The heart is part of the circulatory system

10 .

Which of these is not an organ?

Brain

Red blood cell

Stomach

Lung

An organ is a collection of tissues which share the same function - a tissue is made of many cells, rather than a single cell, so a blood cell cannot be an organ

You can find more about this topic by visiting BBC Bitesize - The human body

Author: Sheri Smith (PhD English Literature, English Teacher & Quiz Writer)