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MUSCLES schwarzenegger/en/life/retroclip/retro\_en\_arn\_hanzfranz.asp?sec=life&subsec=retroclip - PowerPoint PPT Presentation


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MUSCLES http://www.schwarzenegger.com/en/life/retroclip/retro_en_arn_hanzfranz.asp?sec=life&subsec=retroclip. Involuntary Muscles. Involuntary Muscles Muscles that are not under your conscious control. Examples - heart, muscles used for breathing . Voluntary Muscles.

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MUSCLEShttp://www.schwarzenegger.com/en/life/retroclip/retro_en_arn_hanzfranz.asp?sec=life&subsec=retroclipMUSCLEShttp://www.schwarzenegger.com/en/life/retroclip/retro_en_arn_hanzfranz.asp?sec=life&subsec=retroclip

involuntary muscles
Involuntary Muscles

Involuntary Muscles

Muscles that are not under your conscious control.

Examples - heart, muscles used for breathing

voluntary muscles
Voluntary Muscles
  • Muscles that are under your conscious control.
  • Examples – smiling, turning a page in a book, and standing up.
skeletal
Skeletal
  • Are attached to the bones of your skeleton and provide the force that moves your bones.
  • They are Striated
  • Striated - banded
smooth
Smooth
  • Involuntary muscles such as those in your stomach that aid in digestion.
cardiac
Cardiac
  • Found in your heart.
  • It is involuntary, and striated.
contraction
Contraction
  • Muscle cells can only contract, not extend , so skeletal muscles must work in pairs.
  • While one contracts the other muscle relaxes to its original length.
exercise
Exercise
  • Exercise makes muscle cells grow in size. As a result, the whole muscle becomes thicker, and therefore stronger.
tendons
Tendons
  • Tendons are strong connective tissue that connect muscle to bone.