Instructions

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Instructions

• Come in and have a seat quickly and quietly.
• Skeletal System Quiz Wednesday (Bones and
  Functions)
• Hook
• Myth It takes more muscles to frown than to
  smile.
• Fact It actually takes MORE muscles to smile
  than to frown, but the smiling muscles are better
  conditioned so it feels easier!

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• SCI-BONE SAYS

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Muscular System

• On page 85 in your notebook, complete an SQ3R for
  textbook pages 158 161.
• Remember, S survey (key terms/images, Q
  question (using section headings), R read, R
  respond (to questions asked), R reflect
  (summarize and ask additional questions)

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(No Transcript)
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Sinker Diagrams p. 84

• Include at least 5 diagrams on page 84
• Diagrams should include sketches of the three
  types of muscle
• Also include at least one pair of muscles showing
  contraction/relaxation to allow movement
• One additional diagram showing something about
  muscle

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Instructions

• Come in and have a seat quickly and quietly
• Open your notebook to last nights Sinker (p. 84)
• Hook
• What is the difference between aerobic exercise
  and resistance exercise? What are some examples
  of each?

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Pringles Challenge

• Packages can be mailed starting today.
• PLEASE TRY TO MAIL THEM EARLY
• If a package cant be sent, that gives you time
  to adjust your packaging.
• Pringles must be sent by FEBRUARY 5th
• Remember you and your partner should share
  postage cost.

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The Muscular System (p. 87)

• There are over 600 muscles in the human body
• Muscles can only pull (not push) therefore they
  must work in pairs
• When one muscle contracts (shortens) it pulls on
  a bone the paired muscle must relax so it does
  not tear

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Types of Muscle

• Three types
• Skeletal muscles that connect to bones and
  allow movement
• Smooth muscles that make up parts of internal
  organs (ex. Esophagus and stomach)
• Cardiac muscles of the heart

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I need a volunteer!!
Thank you, you just showed us how some muscles
work.
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Muscle Control

• Some muscles are under your control, others are
  not
• Voluntary muscles are ones which you control
  their movement (ex. Arms, legs, mouth)
• Involuntary muscles work without you having to
  make them (ex. Heart, diaphragm, etc.)

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Striated vs. Non-striated

• Striated means striped and is the type of
  muscle found in strong muscles throughout the
  body (Skeletal muscles and cardiac muscles
• Smooth muscle is non-striated because it often
  works in a wave-like motion called peristalsis.

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Sinker Page 86