Blood Vessels

These carry blood to the heart:

• arteries
• veins
• capillaries
• arterioles

These carry blood away from the heart

• arteries
• veins
• venules
• capillaries

These have valves that prevent backflow of blood

• arteries
• veins
• arterioles
• capillaries

The vessel that allows material exchange to take place between body cells and itself.

• arteries

• veins

• venules

• capillaries

The blood vessel that carries oxygenated blood back to the heart

• vena cava

• pulmonary vein

• pulmonary artery

• hepatic portal vein

Which part of a blood vessel does blood flow in?

• Artery

• Lumen

• Gap

• Capillary wall

Which vessels maintain the highest blood pressure?

• Veins

• Capillaries

• Arteries

How many layers of cells make up the wall of a capillary?

• 1

• 2

• 3

• 4

The highly branched nature of capillaries results in

• the blood vessel being very delicate.

• a high surface area for material exchange.

• a slow blood flow to allow more time for material exchange.

• all of the above.

Smooth muscles in arteries help

• to push blood along through peristalsis.

• to prevent the blood vessel from bursting.

• to maintain blood pressure.

• the blood vessel in elastic recoil in order to push the blood along during diastole.