Are arteries the main artery in your body?

There are five types of bloods vessels: arteries, arterioles, capillaries, venules, and. Arteries distribute blood to the body and arterioles, the arterioles mostly innervate tissues and organs. Systemic arteries and arterioles hold about 13% of the bodies blood at any given time. The aorta is the largest artery in the body, it starts at the heart and ends just above the pelvis.