Which is the First and Largest Blood Vessel That Carries

Question

Which is the first and largest blood vessel that carries oxygenated blood to the systemic circuit?  
A) Aorta
B) Superior vena cava
C) Coronary arteries
D) Pulmonary artery
E) Carotid artery

Accepted Answer

The first and largest blood vessel that carries oxygenated blood to the systemic circuit is the aorta. The aorta is the main artery that originates from the left ventricle of the heart and carries oxygenated blood to the rest of the body. The superior vena cava carries deoxygenated blood from the upper body to the right atrium of the heart, while the pulmonary artery carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. The coronary arteries supply oxygenated blood to the heart muscle. The carotid artery carries oxygenated blood to the head and neck. Therefore, the correct answer is A) Aorta.