SARCOMERE STRUCTURE

• WHAT ARE THE DIFFERENT AREAS IN A SARCOMERE?

  • A-band
  • H-zone
  • I-band
  • M-line
  • Z-line
• WHERE IS THE A-BAND?

  where myosin and actin overlap
• WHAT IS THE DARK AREA OF SARCOMERE?

  A-band
• WHERE IS THE H-ZONE?

  myosin filament only
• WHERE IS THE M-LINE?

  middle of sarcomere
• WHERE IS THE I-BAND?


  actin only
• WHERE IS THE LIGHT AREA OF THE SARCOMERE?

  I-band
• WHERE IS THE Z-LINE?

  end of sarcomere
• WHAT IS THE OTHER TYPE OF PROTEIN FOUND IN A SARCOMERE?

  tropomyosin
• WHAT IS TROPOMYOSIN?

  protein found in muscle that forms a fibrous strand around actin filament