The left atrium of the human heart receives oxygen-rich blood returning from the lungs. Through which vessels does this blood arrive?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Pulmonary veins
The pulmonary veins carry oxygen-rich blood from the lungs to the left atrium of the heart. The pulmonary artery does the opposite: it takes deoxygenated blood from the heart to the lungs.