Blood Returning to the Mammalian Heart in a Pulmonary Vein

Question

Blood returning to the mammalian heart in a pulmonary vein drains first into the
A)vena cava.
B)left atrium.
C)right atrium.
D)left ventricle.
E)right ventricle.

Accepted Answer

The pulmonary vein carries oxygenated blood from the lungs back to the heart, and specifically to the left atrium.