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Muscles

Muscles. Functions of the muscular system. Functions of the muscular system. Stabilize joints with their TENDONS Produce movement (including standing upright) Produce heat to maintain body temperature. MUSCLE FACTS. There are more than 600 muscles in your body

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Muscles

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  1. Muscles

  2. Functions of the muscular system

  3. Functions of the muscular system • Stabilize joints with their TENDONS • Produce movement (including standing upright) • Produce heat to maintain body temperature

  4. MUSCLE FACTS • There are more than 600 muscles in your body • Muscles are made of fibers that run parallel to each other held together in bundles by connective tissue • Each fiber is a cylinder shaped cell

  5. Types of muscle tissue

  6. SKELETAL MUSCLE • Attaches to bone for movement • Striated: banded • Voluntary: you control them • Can fatigue (tire out)

  7. http://www.bmb.psu.edu/courses/bisci004a/tissues/skeletal.jpghttp://www.bmb.psu.edu/courses/bisci004a/tissues/skeletal.jpg

  8. CARDIAC MUSCLE • Found only in the heart • Make your heart beat • Striated • Involuntary: you can’t control it • Does not fatigue (tire out)

  9. http://www.sc.edu/union/Sears/AnimalTissue/im.tissueCardiac.jpghttp://www.sc.edu/union/Sears/AnimalTissue/im.tissueCardiac.jpg

  10. SMOOTH MUSCLE • Unstriated • Involuntary • React slowly and tires slowly • Controls breathing, digestive movements, and blood pressure

  11. http://www.bmb.psu.edu

  12. MUSCLE ACTION • Muscles always work in pairs • While one contracts, the other is relaxed • Muscle fibers all have the same strength, so why are some people stronger than others? • They have more muscle fibers

  13. http://www.cytochemistry.net/microanatomy/muscle/smooth1.jpg

  14. http://www.sirinet.net/~jgjohnso/muscle.html

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