Which vessel is missing in the following statement? “Tracing venous blood from the inferior left side of the posterior abdominal wall to the heart, we find that blood enters the posterior intercostal veins, the hemiazygos vein, the superior vena cava, and the right atrium.”
A. the azygos vein
B. the hepatic portal vein
C. the inferior vena cava
D. the right brachiocephalic vein
Answer:A
Which vessel is missing in the following statement? “Tracing venous blood from the inferior left side of the posterior abdominal wall to the heart, we find that blood enters the posterior intercostal veins, the hemiazygos vein, the superior vena cava, and the right atrium.”
A. the azygos vein B. the hepatic portal vein C. the inferior vena cava D. the right brachiocephalic vein