The First Blood Vessel of Systemic Circulation is The

Question

The first blood vessel of systemic circulation is the
A) pulmonary artery
B) aorta
C) superior vena cava
D) inferior vena cava

Accepted Answer

The aorta is the first blood vessel of systemic circulation. It arises from the left ventricle of the heart and carries oxygen-rich blood to the rest of the body. The pulmonary artery carries deoxygenated blood from the heart to the lungs for oxygenation, while the superior and inferior vena cavae bring deoxygenated blood back to the heart from the upper and lower body, respectively.