Two upper chambers of the heart that receive blood
Heart Chambers The two upper chambers are called the atria. The right atrium and The ventricles have thicker walls and pump blood to the lungs and body.
The left side of the heart receives the oxygen-rich blood from the The atria (AY- tree-uh) are the two upper chambers that collect blood as it.
Learn more about chambers of the heart in the Boundless open textbook. The heart has four chambers. The two atria receive blood into the heart and the two. The two atria receive blood into the heart and the two ventricles pump blood into circulation. Twitter Facebook Google YouTube Pinterest. National Institutes of Health. Valves are like doors that open and close. The lower chambers, the more muscular right and left ventricles, pump blood out of your heart. During ventricular diastole, the ventricles relax and fill with blood. Heart Valve Disease Definition and Prevalence