Which supply oxygenated blood ?
A. artery and pulmonary artery
B. vein and pulmonary vein
C. artery and pulmonary vein
D. vein and artery
Answer:A
Which supply oxygenated blood ?
A. artery and pulmonary artery B. vein and pulmonary vein C. artery and pulmonary vein D. vein and artery