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Involuntary vs. Voluntary . Controlled by the Autonomic System Automatic [work by themselves without you having to think about it ] Smooth muscles Found in internal organs, such as heart & stomach No stripes. Controlled by the Somatic System
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Involuntary vs. Voluntary • Controlled by the Autonomic System • Automatic [work by themselves without you having to think about it] • Smooth muscles • Found in internal organs, such as heart & stomach • No stripes • Controlled by the Somatic System • You control them, you choose to move them • Skeletal muscles • Found attached to the skeleton • Striated [striped] muscles
Slow to react • Do not work hard • Do not tire easily • Examples: stomach digesting, blood vessels moving blood • Quick to react • Work hard • Tire quickly • Examples: hand waving, face smiling , kicking a ball