Which vessels carry blood away from the heart to the lungs in pulmonary circulation?

Which vessels carry blood away from the heart to the lungs in pulmonary circulation?

• A. Pulmonary arteries.
• B. Pulmonary veins.
• C. Aorta.
• D. Superior vena cava.

Answer: (A)

In pulmonary circulation, the vessels that carry blood away from the heart to the lungs are the pulmonary arteries. The right ventricle pumps deoxygenated blood into these arteries, which deliver it to the lungs for gas exchange. After picking up oxygen, blood returns to the heart through the pulmonary veins and enters the left atrium. Pulmonary veins bring blood back to the heart, not away from it. The aorta moves blood from the left ventricle to the systemic circulation, not to the lungs. The superior vena cava brings blood from the upper body to the right atrium, also not away to the lungs.

In pulmonary circulation, the vessels that carry blood away from the heart to the lungs are the pulmonary arteries. The right ventricle pumps deoxygenated blood into these arteries, which deliver it to the lungs for gas exchange. After picking up oxygen, blood returns to the heart through the pulmonary veins and enters the left atrium. Pulmonary veins bring blood back to the heart, not away from it. The aorta moves blood from the left ventricle to the systemic circulation, not to the lungs. The superior vena cava brings blood from the upper body to the right atrium, also not away to the lungs.