Which structure(s) would be subject to the lowest blood pressure?
A) vena cava
B) aorta
C) atrioventricular valve
D) pulmonary arteries
E) semilunar valve

Question

Quizplus · Accepted Answer

The vena cava, which includes both the superior and inferior vena cava, is subject to the lowest blood pressure because it carries deoxygenated blood back to the heart's right atrium at a low pressure. This is in contrast to structures like the aorta and pulmonary arteries, which carry blood away from the heart under higher pressure. The atrioventricular and semilunar valves are involved in the regulation of blood flow and pressure within the heart but are not directly indicative of the areas of highest or lowest blood pressure.

Which Structure(s) Would Be Subject to the Lowest Blood Pressure