Skeleton, Joints and Muscles - revise KS3 science with fun quizzes

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

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This KS3 Science quiz asks questions about the skeleton, joints and muscles. Your skeleton has several different jobs - it supports the body, protects some vital organs, makes blood cells and allows you to move around. The bones of your skeleton are connected by fixed joints, hinged joints, ball and socket joints and partly-moving joints.

Bone is a living tissue made from calcium compounds and other minerals and is strong but slightly flexible. Your skull is made from several bones, joined firmly together - these are fixed joints.

Elsewhere in your body, the bones are joined more flexibly. At these flexible joints, the bones on opposite sides are held together by tough tissues called ligaments.

Between the ends of the bones, there is a layer of cartilage, which is lubricated by synovial fluid. This helps to make the joint move smoothly and the cartilage prevents the bone end wearing away. The joint is moved by at least one pair of antagonistic muscles working against each other - one relaxes whilst the other contracts. A good example of this is the elbow joint. This is moved by the biceps and triceps muscles. The biceps contracts and the triceps relaxes to raise the forearm and vice-versa to lower it.

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

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

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

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

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

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

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

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

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

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

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

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

Which is the extensor muscle in the arm?

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

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

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

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

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

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

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

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

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

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

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

This bends the arm by contracting

Which is the extensor muscle in the arm?

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

This straightens the arm by contracting

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