Oxygenated blood enters the heart at the

A) left atrium.
B) left ventricle.
C) right atrium.
D) right ventricle.
E) pulmonary arteries.

Oxygenated Blood

Blood that has been enriched with oxygen from the lungs and is being transported by the arteries to the rest of the body.

Left Atrium

The left atrium is one of the four chambers of the heart, receiving oxygen-rich blood from the lungs and pumping it into the left ventricle.

Pulmonary Arteries

Blood vessels that carry deoxygenated blood from the heart to the lungs for gas exchange.