Unit 1 skeleton, joints and muscles

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SKELETON, JOINTS AND MUSCLES

Transcript of Unit 1 skeleton, joints and muscles

Page 1: Unit 1 skeleton, joints and muscles

SKELETON, JOINTS AND MUSCLES

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THIS IS MY SKELETON

The skeleton has 206 bones.

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head

torso

limbs

The skeleton has 3 parts: skull, torso

and the limbs.

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The skeleton has 2 functions:

It supports our body.It protects the delicate

organs inside our body.

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Our bones are connected at joints.

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JOINTS

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Our elbows, knees, shoulders, wrists and ankles are all joints.

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There are 600 muscles in our body.

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THERE ARE 2 TYPES OF MUSCLES

voluntary involuntary

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1. We can move voluntary muscles when we want.

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2. We can’t control involuntary muscles: they move automatically.

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Muscles relax and contract.