Circulatory System Part 2

Human blood vessels are

• artries, capillaries, and atria

• ventricles, atria and pulmonary veins

• capillaries, artries, and veins

• veins, artries, and aorta

The thickest and strongest blood vessel is the

• vein

• artery

• capillary

• both veins and capillaries

The blood vessel that has the largest diameter is

• vein

• artery

• capillary

Valves in veins

• support them

• protect them

• prevent the backward movement inside them

• provide them elesticity

which of the blood vessels do you think have greatest blood pressure

• veins

• capillaries

• atria

• arteries

Carry blood away from heart; mostly oxygen-rich

• Arteries
• Veins
• Capillaries

Carry blood toward heart; mostly oxygen-poor

• Arteries
• Veins
• Capillaries

These are one cell thick

• arteries

• capillaries

• veins

Which is the smallest of the 3 blood vessels?

• Veins

• Arteries

• Capillaries

Which blood vessel has valves to prevent the back-flow of blood?

• Veins

• Arteries

• Capillaries