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Download Chapter 8 – Your Body Systems Lesson 3 – The Muscular System
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Ch. 8, L3 Chapter 8 – Your Body Systems Lesson 3 – The Muscular System skeletal muscle the muscle that is attached to bones smooth muscle the muscle that forms some internal organs cardiac muscle the muscle that forms the heart Many Kinds of Muscles • muscles help the body move • provides stability and support • when muscles contract, the length shortens Muscles and Movement • muscles work in pairs • when skeletal muscles contract, they pull on bones • its two ends are pulled to the center • if the two ends are attached to different bones, the bones are pulled towards each other
