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The atrial septum divides the right from the left atrium. The atria are smaller, less muscular chambers of the heart that sit atop the powerful ventricles.

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βˆ™ 16y ago
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βˆ™ 12y ago

Atriotomy is surgical incision of an upper heart chamber.

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βˆ™ 12y ago

Septal

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Q: What is the medical term meaning surgical incision into an upper heart chamber?
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