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Type: Multiple-Choice
Category: Circulatory and Immune Systems
Level: College
Author: jmaresh@wcupa.edu
Created: 2 weeks ago

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Circulatory and Immune Systems Question

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College Circulatory and Immune Systems

Which event occurs first during atrial and ventricular diastole in the human heart?
  1. Blood flows into the relaxed atria while the ventricles contract.
  2. The atria and ventricles are relaxed, and blood flows into the atria all four chambers.
  3. The atria contract while blood flows into the relaxed ventricles.
  4. The atria and ventricles contract simultaneously.
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