Which of the following is the largest artery of the human body?

Arteries are the thick muscular blood vessels that carry blood away from the heart. Most arteries (except the pulmonary artery) transport oxygenated blood.

Aorta is the largest artery of the human body. It measures around one foot in length and over an inch in diameter. It begins at the top of the left ventricle. It receives oxygenated blood from the left ventricle through the aortic valve.