patrickfryer9929 patrickfryer9929
  • 25-10-2017
  • Biology
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The actual contractile units of muscles extend from z disc to z disc. they are ________.

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W0lf93
W0lf93 W0lf93
  • 04-11-2017
There are four units of muscles extend from z disc to z disc. They are thick filaments,myofibrils, sarcoplasmic reticulum and sarcomeres. Cross sections of the sarcomere in areas where thick and thin filaments overlap show that thick filament is surrounded by 6 thin filaments - each thin is surrounded by 3 thin
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