What are the largest parts of the heart called?

robboy

Your heart has 4 chambers. The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles. A wall of muscle called the septum separates the left and right atria and the left and right ventricles. The left ventricle is the largest and strongest chamber in your heart. The left ventricle's chamber walls are only about a half-inch thick, but they have enough force to push blood through the aortic valve and into your body. Here's a do-it-yourself map: http://www.tmc.edu/thi/anatomy.html [Edited content - McG] Mar 05 04, 9:11 PM

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