12
AssignmentMultiple Choice

Unit Test

Question 12 • 2026-2027 EDGE Human Anatomy and Physiology B

Which is responsible for transporting oxygen-rich blood from the lungs to the left atrium of the heart?

Answer
A
pulmonary veins
B
inferior vena cava
C
superior vena cava
D
pulmonary arteries

Explanation

Pulmonary veins carry oxygen-rich blood from the lungs to the heart’s left atrium. The venae cavae carry oxygen-poor blood into the right atrium, while pulmonary arteries carry oxygen-poor blood from the heart to the lungs. Therefore, the correct choice is pulmonary veins.

AI-written and checked against the verified answer.

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