Is the left atrium oxygenated or deoxygenated?

Understand the Problem

The question is asking whether the blood in the left atrium of the heart is oxygenated or deoxygenated. In the human circulatory system, the left atrium receives oxygenated blood from the lungs, which means the answer is that it contains oxygenated blood.

More Information

The left atrium receives oxygenated blood from the pulmonary veins, which comes from the lungs.

Sources

• How Blood Flows Through the Heart & Body - Cleveland Clinic - my.clevelandclinic.org
• How the Heart Works - How Blood Flows through the Heart - NHLBI - nhlbi.nih.gov
• The Heart | Circulatory Anatomy - Visible Body - visiblebody.com