Thicker
an artery
arteries
veins
It is a vein.
artery
there are only 2 vessels that take blood from the heart. The Pulmonary trunk that bifurcates into the (right and left) pulmonary arteries. and the aorta. the aorta is the largest vessel in the body and certainly would be considered thick walled.
which is a combining form for a vessel that carries blood toward the heart
Veins are thin-walled blood vessels that carry blood to the heart. The valves in veins help prevent backflow. In contrast, arteries have thicker walls and no valves. They carry blood away from the heart.
The arteries carry blood away from the heart. The aorta is the main artery that carries oxygen rich blood from the heart to the rest of the body.
Arteries carry blood containing oygen and nutrients away from the heart. They are thick walled and elastic to cope with the pressure exerted by the contraction of the heart.
a vessel that carries blood towards the heart.
Most veins are thinner walled tubes than arteries, and basically transport blood towards the heart.