Blood Vessels

How many blood vessel types do humans have?

• 4

• 5

• 3

• 2

State the 3 types of blood vessels in humans.

• artries, capillaries, and atria

• ventricles, atria and pulmonary veins

• capillaries, artries, and veins

• veins, artries, and aorta

Name the thickest and strongest blood vessel.

• vein

• artery

• capillary

• both veins and capillaries

State the blood vessel that has the largest diameter.

• vein

• artery

• capillary

The blood vessel that has valves at intervals...

• capillary

• artery

• vein

• none of the above

State the main functions of the valves inside veins.

• support them

• protect them

• prevent the backward movement inside them

• provide them elesticity

Which of the blood vessels have the greatest blood pressure?

• veins

• capillaries

• atria

• arteries

Which blood vessels carry blood away from heart; mostly oxygen-rich.

• Arteries

• Veins

• Capillaries

Which blood vessels carry blood toward heart; mostly oxygen-poor.

• Arteries

• Veins

• Capillaries

Name the blood vessels that are only one cell thick.

• arteries

• capillaries

• veins