First the atria, the two upper chambers contract, and push blood into the ventricles, the two lower chambers. Then they relax as the ventricles contract and push blood into the pulmonary and systemic arteries. Finally, the ventricles relax as the cardiac cycle repeats with another atria contracti...
What is the prognosis for a pulmonary embolism? How does a pulmonary embolism form? Is a pulmonary embolism a stroke? What is an acute saddle pulmonary embolism? Is a pulmonary embolism a blood clot? What is bilateral pneumothorax? How does a pulmonary embolism cause atelectasis?
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