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Science Quiz - Skeleton, Joints and Muscles 01 (Questions)

Skeletons support our bodies, protect vital organs, and work with muscles to let us move. Joints connect bones and allow different types of movement.

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Fascinating Fact:

Babies are born with about 300 bones, but as they grow many fuse together, leaving 206 bones in the adult skeleton.

In KS3 Science, students study the skeleton, joints, and muscles to understand how the body is structured and how it produces movement. This topic also shows how bones, cartilage, and muscles work together.

Key Terms

Joint: A place where two or more bones meet, allowing movement or stability.
Cartilage: A smooth, flexible tissue that reduces friction at joints.
Tendon: A tough cord that attaches muscle to bone.

Frequently Asked Questions (Click to see answers)

What are the three types of joints in the human body?

The human body has fixed joints that don’t move, slightly movable joints like those in the spine, and freely movable joints such as knees and elbows.

What are the main functions of the skeleton?

The skeleton gives the body shape, protects vital organs such as the brain and heart, and works with muscles to allow movement.

How do muscles and bones work together?

Muscles are attached to bones by tendons. When muscles contract, they pull on bones, creating movement at the joints.

Try These Related Quizzes

1.

Which of the following is NOT a function (job) of the skeleton?

[ ]	A framework of bones
[ ]	Protecting organs
[ ]	Supporting the body
[ ]	To allow movement

2.

The function of the skull is .......

[ ]	to allow movement of the neck
[ ]	to allow you to hear
[ ]	to allow you to see
[ ]	to protect the brain

3.

Which of the following are needed for healthy bones?

[ ]	Calcium and vitamin C
[ ]	Calcium and vitamin D
[ ]	Iron and vitamin C
[ ]	Iron and vitamin D

4.

Bones are held together at a joint by .......

[ ]	cartilage
[ ]	ligaments
[ ]	muscles
[ ]	tendons

5.

At a joint the ends of the bones are covered in .......

[ ]	cartilage
[ ]	fluid
[ ]	muscles
[ ]	tendons

6.

Muscles are joined to the bones by .......

[ ]	cartilage
[ ]	ligaments
[ ]	patellas
[ ]	tendons

7.

The elbow is a hinge joint. Which is the flexor muscle?

[ ]	Biceps
[ ]	Deltoid
[ ]	Quadraceps
[ ]	Triceps

8.

Which is the extensor muscle in the arm?

[ ]	Biceps
[ ]	Deltoid
[ ]	Quadraceps
[ ]	Triceps

9.

Antagonistic action of two muscles means .......

[ ]	Both muscles contract
[ ]	Both muscles relax
[ ]	As one muscle contracts the other relaxes
[ ]	Both muscles do nothing

10.

Which of the following is NOT a bone in the arm?

[ ]	Femur
[ ]	Humerus
[ ]	Radius
[ ]	Ulna

You can find more about this topic by visiting BBC Bitesize - The skeletal system

Science Quiz - Skeleton, Joints and Muscles 01 (Answers)

1.

Which of the following is NOT a function (job) of the skeleton?

[x]	A framework of bones
[ ]	Protecting organs
[ ]	Supporting the body
[ ]	To allow movement

A skeleton is a framework of bones but this is not its job, it is its description

2.

The function of the skull is .......

[ ]	to allow movement of the neck
[ ]	to allow you to hear
[ ]	to allow you to see
[x]	to protect the brain

The bones of a baby's head are joined flexibly. This allows the head to slightly change shape and makes it easier for them to be born. As they grow, the skull bones grow by a small amount and join together solidly

3.

Which of the following are needed for healthy bones?

[ ]	Calcium and vitamin C
[x]	Calcium and vitamin D
[ ]	Iron and vitamin C
[ ]	Iron and vitamin D

Calcium and vitamin D are found in eggs and milk

4.

Bones are held together at a joint by .......

[ ]	cartilage
[x]	ligaments
[ ]	muscles
[ ]	tendons

If you injure a ligament, it can take many months for it to recover. This is unlike an injury to a muscle which normally only takes a few days to heal, depending on how bad the injury is and how healthy you are

5.

At a joint the ends of the bones are covered in .......

[x]	cartilage
[ ]	fluid
[ ]	muscles
[ ]	tendons

The cartilage stops the bones rubbing on each other and wearing away

6.

Muscles are joined to the bones by .......

[ ]	cartilage
[ ]	ligaments
[ ]	patellas
[x]	tendons

Tendon injuries can take many months to heal. In some cases, it can take over a year

7.

The elbow is a hinge joint. Which is the flexor muscle?

[x]	Biceps
[ ]	Deltoid
[ ]	Quadraceps
[ ]	Triceps

This bends the arm by contracting

8.

Which is the extensor muscle in the arm?

[ ]	Biceps
[ ]	Deltoid
[ ]	Quadraceps
[x]	Triceps

This straightens the arm by contracting

9.

Antagonistic action of two muscles means .......

[ ]	Both muscles contract
[ ]	Both muscles relax
[x]	As one muscle contracts the other relaxes
[ ]	Both muscles do nothing

Antagonistic means working against each other

10.

Which of the following is NOT a bone in the arm?

[x]	Femur
[ ]	Humerus
[ ]	Radius
[ ]	Ulna

The femur is in the leg - it's the thigh bone