The Muscular System

The Muscular System — page 1 — CHAPTER 1 Powerful MUSCLES A runner speeds down the track Her heart pounds Her legs push The runner's muscular system is in full gear The body's muscles make up the muscular system Without muscles people couldn't run breathe or even poop

The Muscular System — page 2 — CANADA Canon CAN 5

The Muscular System — page 3 — Types of Muscles skeletal cardiac smooth

The Muscular System — page 4 — Oo Three Kinds of Muscle Every muscle works the same way They contract then rest This action beats the heart It moves legs and arms It digests food Three types of muscles work inside the body Skeletal muscles make bones move Smooth muscles are mostly in organs Cardiac muscles make up the heart

3

PAGE 3 OF 29

›

The only kids' eBook subscription service that offers thousands of high-quality books from well known publishers like HarperCollins, National Geographic and others.

JavaScript Required

Whoops! We're sorry but Epic doesn't work properly without JavaScript enabled. Check your web browser's settings to make sure it's enabled.