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The tongue is not an involuntary muscle.

Muscles

As a part of KS2 Science children will learn about muscles in both humans and animals. This quiz looks at some of the different types of muscles, what they are made from and how they work by contracting and relaxing.

Muscles are tissues that produce movement in the bodies of animals and humans. They are made from stretchy bundles of protein fibres. Did you know that the word 'muscle' comes from the Latin name for 'mouse'? This is because muscles, when contracting and relaxing, reminded people of how mice move. Next time you're checking your biceps, have a look in the mirror to see if you agree!

Do animals all have muscles or is it just humans who do? Contracting your biceps leads to which muscle relaxing? See what you know about muscles by taking this science quiz.

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Which of these is not true?

Snakes have very strong muscles to help them move

Some insects have thousands of muscles

Humans are the only animals with muscles

Birds need powerful muscles in order to fly

All animals have muscles

What attaches muscles to the skeleton?

Ligaments

Joints

Tendons

Arteries

Ligaments hold bones together at the joints

What do your muscles need in order to work?

Carbon dioxide and energy

Oxygen and food

Nitrogen and energy

Carbon dioxide and blood

The cells in the muscles can convert oxygen and food into energy

When you contract your bicep, what happens?

Your tricep relaxes

Your other bicep also contracts

Your arm lowers

Nothing else happens

Muscles work in pairs: when you contract your tricep, your bicep relaxes and when you contract your bicep, your tricep relaxes

Which of these is not an involuntary muscle?

The heart

The diaphragm

The muscles lining the stomach

The tongue

The diaphragm (the powerful muscle under your lungs) is interesting - you don't need to make it contract (because it's involuntary), but you can if you want to. That's why people can control their breathing but don't have to think about every breath

What are muscles made from?

Fat cells

Thin strands of iron

Thousands of small stretchy fibres

Carbohydrates

Each muscle is actually a bundle of small stretchy fibres made from protein

Your facial muscles allow you to do what?

To use your brain

To make different facial expressions

To hear

To lift heavy weights

You have more than 30 facial muscles. These allow you to make an enormous range of facial expressions

Skeletal muscles are usually attached to bones at both ends. Which muscle is an exception?

The tongue

The gluteus maximus

Pectorals

Triceps

The tongue is only connected at one end - otherwise, how would you be able to chew and swallow, or even talk?

Exercise makes muscles do what?

Grow bigger and stronger

Grow smaller and weaker

Become less stretchy

Become less effective

The more you use a muscle the bigger and stronger it gets, but if you don't use it, a muscle gets smaller and weaker

10.

How do voluntary muscles always work?

Voluntary muscles always work on their own

Voluntary muscles always work in pairs

Voluntary muscles always work in groups of three

Voluntary muscles always contract at the same time

Voluntary muscles are the muscles you can control. They are also called 'skeletal' muscles. Involuntary muscles are also called 'smooth' muscles

Author: Sheri Smith

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