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Physical isolation of atrial muscle cells from ventricular muscle cells is a function of which of the following?

1. The internodal pathway
2. the cardiac skeleton
3. The Purkinje fibers
4. The AV bundle (of His)

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onyebuchinnaji

Answer:

The cardiac skeleton

Explanation:

The cardiac skeleton is not a "true" skeleton, but it provides structure and support for the heart, as well as isolating the atrial muscle cells from ventricular muscle cells.

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