Human Skeleton Recap

Which part of your brain protects the brain?

• Ribs

• Backbone

• Skull

• Head

Which part of the skeleton protects the heart and lungs?

• Ribs

• Backbone

• Skull

• Chest

What happens to your skeleton as your grow?

• It grows

• It stays the same size

• It gets smaller

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An animal with a backbone is called a ...

• Invertebrate

• Vertebrate

• Spine

• Backbone

Which of the animals below has its skeleton on the outside (exoskeleton)?

• Woodlouse

• Camel

• Tuna

• Falcon

We need a skeleton

• so we can move

• for support

• for protection

• All of the answers

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How does your arm bend?

• One muscles pulls your arm up.

• One muscles pulls your arm both up and down

• The bones move your arm on their own.

• One pulls your arm up to bend it and the other muscles relaxes.

Muscles work together in pairs.

• True

• False

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When a muscles contracts (pulls) the opposite muscle ...

• contracts

• expands

• relaxes

• none of these

Why do animals (like crabs and insects) shed their outer skeletons?

• Their skeleton cannot grow

• They get too warm

• The skeleton starts to smell

• Their skeleton is damaged

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