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
Famous quotes containing the word left:
“Thou hast left behind
Powers that will work for thee; air, earth, and skies;
There’s not a breathing of the common wind
That will forget thee; thou hast great allies;
Thy friends are exultations, agonies,
And love, and man’s unconquerable mind.”
—William Wordsworth (1770–1850)