Groups of cardiac muscle are connected to each other through ________ discs that allow the fibers in each group to contract and relax together and allows the heart to work as a pump.
Fill in the blank(s) with the appropriate word(s).
intercalated
Groups of cardiac muscle are connected to each other through intercalated discs that allow the fibers in each group to contract and relax together, so the heart can work as a pump.
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