The aorta is the largest artery.
There is no portal artery. A portal vein connects one capillary bed to a second capillary bed. (in series)
the smallest blood vessel is the capillary, then the vein, and the artery. (vein and artery depends though because when they diffuse they get smaller and close to the same size) but the smallest will always be the capillary.
Artery, Vein and Capillary
Myrae Ging Bonner
NO
Artery -> Arteriole -> Capillary -> Venule -> Vein
artery- vein- capillary
The answer is an artery(arteries), a vein(veins), and a capillary(capillaries)
artery- vein- capillary
They are pulmonary artery, pulmonary vein, and capillary.
Inside the body it would be a Capillary, vein or an artery, Capillary being the smallest