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Question: which of these is true of cardiac muscle gap junctions...

Question details

Which of these is True of cardiac muscle?

 

 

Gap junctions are found in intercalated discs for the purpose of spreading pacemaker potentials

 

Action potentials in contractile cardiac cells are shorter than the contraction they elicit

 

Modification of Na channel permeability affects pacemaker potentials in SA node cells

 

Both A and C

 

All of the Above

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