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MT: Muscular System

Uncover the fascinating functions of the muscular system - from skeletal muscle movement and heat generation to posture and cardiac muscle blood pumping. Discover how smooth muscles transport nutrients and waste, sustaining essential bodily functions. Watch engaging videos to enhance your understanding!

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MT: Muscular System

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Presentation Transcript

  1. I will understand the function of the muscular system. MT: Muscular System

  2. Fxn of Skeletal Muscle: Movement Heat Production Posture

  3. Movement • attached to bone contracts thus producing movement • Ex: walking, talking, chewing, blinking

  4. Heat Production • Reactions during muscle contraction produce heat • Heat contributes to constant body temperature (homeostasis of temperature)

  5. Why do we shiver when we're cold? • Shivering is a result of muscle contraction. This produces heat thus increasing your body temperature.

  6. Posture • Continuous partial contraction of skeletal muscles • Allows standing, sitting, and maintaining a stable body position while walking, running, and all other movements.

  7. Fxn of Cardiac Muscle: Pump blood

  8. Pumping Blood • Cardiac muscle cells contract to provide all cells with blood • Blood has all of the nutrients that cells need to be healthy

  9. Fxn of Smooth Muscle: transport nutrients & waste

  10. Transport Nutrients/Waste • Smooth muscles line the inside of hollow organs and blood vessels • Ex: swallowing, digesting food in intestines, defecating, erection

  11. Video 1. Incredible Machinehttp://www.youtube.com/watch?v=7Rzi7zYlWno 2. Cartoon http://www.youtube.com/watch?v=RsWNyqnHQ2I

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