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3 years ago
The two types of cardiac muscle cells involved in a normal heartbeat include specialized cells of the conducting system and ________ cells. 
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Would you know my name, if I saw you in heaven?

Eric Clapton
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contractile
If you are reading this, you are awesome, and I wish you a happy and prosperous day!
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3 years ago
Thanks Smiling Face with Open Mouth
Would you know my name, if I saw you in heaven?

Eric Clapton
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