Yes, that is correct.
Yes
The arterial walls are thicker because they need to withstand the pressure coming from the heart.
Have thinner walls.
Venules, they are smaller and thinner than veins.
Arteries have thicker wall because the pressure in the arteries is much higher.
Thee difference between muscle in veins and arteries is that muscles of arteries are thicker compared to those of veins.
Most veins are thinner walled tubes than arteries, and basically transport blood towards the heart.
No, veins are not under high pressure. High-pressure vessels are the arteries.
Arteries have thick elastic walls that can expand and contract, because they carry blood pumped from the heart. Veins return the blood to the heart but the pressure is not the same as in the arteries.
Capillaries are thin tubes connected to your veins and arteries that transfer the blood from the arteries to the veins. Capillaries are so thin, they are thinner than one piece of hair. They are one cell thick.
Capillaries are smaller, thinner and have less surface area than veins. Veins take blood to the heart, and capillaries are the thin tubes that connect the veins and arteries together.
Veins carry blood towards the heart, typically carrying deoxygenated blood except for the pulmonary veins. Veins have thinner walls and larger lumens compared to arteries, and contain valves to prevent backflow of blood. Veins are located closer to the surface of the body compared to arteries.