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Life Science : 1.3<br />The Muscular System<br />
Objectives:<br />List three kinds of muscle tissue.<br />Describe how skeletal muscles move bones.<br />Compare aerobic ex...
Kinds of Muscle<br />Muscular system<br />Made up of the muscles that let you move.<br />Three Kinds of Muscle<br />Smooth...
Movement<br />Muscles Attach to Bones<br />Tendons are strands of tough connective tissue that connect your skeletal muscl...
Use It or Lose It<br />Resistance Exercise<br />During resistance exercise, people work against the resistance, or weight,...
Muscle Injury<br />Strain <br />an injury in which a muscle or tendon is overstretched or torn.<br />Tendonitis <br />Infl...
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Life Science 1.3 : The Muscular System

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Transcript of "Life Science 1.3 : The Muscular System"

  1. 1. Life Science : 1.3<br />The Muscular System<br />
  2. 2. Objectives:<br />List three kinds of muscle tissue.<br />Describe how skeletal muscles move bones.<br />Compare aerobic exercise with resistance exercise.<br />Describe two muscular system injuries.<br />
  3. 3. Kinds of Muscle<br />Muscular system<br />Made up of the muscles that let you move.<br />Three Kinds of Muscle<br />Smooth muscle <br />Involuntary muscle found in the digestive tract and the walls of the blood vessels. <br />Cardiac muscle <br />Involuntary muscle found in your heart.<br />Skeletal muscle <br />Muscle attached to your skeleton for movement is called.<br />Skeletal muscle can be voluntary or involuntary.<br />
  4. 4. Movement<br />Muscles Attach to Bones<br />Tendons are strands of tough connective tissue that connect your skeletal muscles to your bones.<br />Muscles Work in Pairs<br />Skeletal muscles often work in pairs.<br />Flexor<br />A muscles that bends part of your body.<br />Extensor<br />A muscle that straightens part of your body.<br />
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  6. 6. Use It or Lose It<br />Resistance Exercise<br />During resistance exercise, people work against the resistance, or weight, of an object to strengthen their skeletal muscles.<br />Aerobic Exercise <br />Steady, moderately intense activity<br />Strengthens the heart and increases endurance.<br />
  7. 7. Muscle Injury<br />Strain <br />an injury in which a muscle or tendon is overstretched or torn.<br />Tendonitis <br />Inflamed tendons<br />People who exercise too much can hurt their tendons. <br />Some people try to make their muscles stronger by taking drugs. <br />These drugs are called anabolic steroidsand can cause long-term health problems.<br />
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