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Understanding the Muscular System: Definitions and Functions

Explore the intricate components of the muscular system, from types of muscles to their roles in producing movement, maintaining posture, and generating heat. Learn key terms like striated muscle and voluntary muscle in this comprehensive guide.

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Understanding the Muscular System: Definitions and Functions

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Presentation Transcript

  1. Muscular System

  2. Do Now • What is your New Year’s resolution? • Write 5 lines on your New Years Resolution • If you don’t have one, make one up and write about it! • Go!

  3. Do Now • http://www.youtube.com/watch?v=POdzasJklxw

  4. Schedule • Muscle System Unit Plan

  5. Homework • Define: • Striated Muscle • Voluntary Muscle • Fascicle • Endomysium • Perimysium • Epimysium

  6. Muscle Types • Skeletal Muscle • Cardiac Muscle • Smooth Muscle

  7. Types of Muscle

  8. Function • Producing Movement • Maintain posture and position • Stabilize joints • Generate heat

  9. Producing Movement • Obvious here, muscles create movement • Muscle create the ability to walk, swim, run • Circulate blood, maintain blood pressure • Force food through intestines/stomach

  10. Maintain Posture/Position • Everybody Stand up! • Remove the shoe of your dominant foot • Balance on your dominant foot for 1 minute • Notice the slight twitches of your foot to maintain balance

  11. Stabilizing Joints • Muscles/tendons cross the joints • EX: Shoulder/Hip • Extremely important for unstable joints

  12. Generate Heat • In any energy system, there are by product • When you exercise, what happens to your body? • Cars- Exhaust • Exercise-heat

  13. Skeletal Muscle • Attaches to bone via tendons • Attaches to skin in the face • Voluntary from nervous system • Striated muscle (obvious stripes) • Contracts quickly, but also fatigues quickly

  14. Homework • Define terms from the reading: • Striated Muscle • Voluntary Muscle • Fascicle • Endomysium • Perimysium • Epimysium Possible quiz next class!

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