The left atrium is one of the four chambers in the human heart. It receives oxygenated blood from the pulmonary veins, and pumps it into the left ventricle, via the mitral valve. Atria facilitate circulation primarily by allowing uninterrupted venous flow to the heart, preventing the inertia of interrupted venous flow that would otherwise occur at each ventricular systole.
Read more about Left Atrium: Size, Foramen Ovale, Blood Supply, Animals
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“There be of them, that have left a name behind them, that their praises might be reported. And some there be, which have no memorial; who are perished, as though they had never been; and are become as though they had never been born; and their children after them.”
—Apocrypha. Apocrypha, Ecclesiasticus 44:8-9.