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The Muscular System

The Muscular System. Skeletal Muscles. These muscles are what we think about when we think of our muscles. These muscles are voluntary meaning that unlike the other systems these muscles work only when you tell them to.

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The Muscular System

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  1. The Muscular System

  2. Skeletal Muscles • These muscles are what we think about when we think of our muscles. • These muscles are voluntary meaning that unlike the other systems these muscles work only when you tell them to. • The light and dark strips on these muscles make them look like they’re striped.

  3. Cardiac Muscles • The only cardiac muscle in your body is your heart. • It is controlled by the Medulla Oblongata, which controls all of the involuntary action throughout your body. • As you probably know, your heart pumps blood through your body. • Your heart is an involuntary muscle.

  4. Smooth Muscles • Smooth muscles are involuntary, meaning that they work without being told to • Smooth muscles make up all the involuntary muscles except the heart. • Smooth muscles are usually in sheets or layers stacked up one behind the other. • These muscles also keep your eyes focused.

  5. Strains and Sprains • A strain is when a muscles is stretched too far. • A sprain has occurred when a ligament is stretched or torn. • A ligament is what helps hold your bones together.

  6. Facial muscles • Facial muscles don’t attach to bones like they do in the rest of the body. • The muscles attach under the skin. • This allows you to move your muscles just a little bit. That allows you to make all kinds of crazy faces. • Your tongue is a muscle that is attached at one end!!!!

  7. More Facts • Without muscles you wouldn’t be able to move. • You wouldn’t even be able to see straight. • You have over 200 muscles in your body!!!! • You can’t really build up your muscles until you’re older, but you can do things to keep your muscles healthy.

  8. Picture Page

  9. Bibliography • http://library.thinkquest.org/2935/Natures_Best/Nat_Best_Low_Level/Muscular_page.L.html • http://kidshealth.org/kid/cancer_center/HTBW/muscles.html

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