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:
“Hoping that, when the devil days of my hurt
Drag out to their last dregs and I resume
On such legs as are left me, in such heart
As I can manage, remember to go home,
My taste will not have turned insensitive
To honey and bread old purity could love.”
—Gwendolyn Brooks (b. 1917)