Blood Vessel

The thickest and strongest blood vessel is the

• vein

• artery

• capillary

• both veins and capillaries

Human blood vessels are

• artries, capillaries, and atria

• ventricles, atria and pulmonary veins

• capillaries, artries, and veins

• veins, artries, and aorta

The blood vessel that has valves at intervals...

• capillary

• artery

• vein

• none of the above

Valves in veins

• support them

• protect them

• prevent the backward movement inside them

• provide them elesticity

Which type of blood vessel has the thinnest walls?

• Arteries

• Veins

• Capillaries

• Arterioles

The smallest type of blood vessel is the:

• nerve

• vein

• capillary

• artery

Which type of blood vessel carries blood away from the heart?

• Veins

• Arteries

• Capillaries

• Venules

What type of blood vessel carries blood away from the heart?

• Veins

• Arteries

• Capillaries

• Venules

Which blood vessel type has the thinnest walls?

• Arteries

• Veins

• Capillaries

• Arterioles

What is the main function of capillaries in the circulatory system?

• To transport blood to the heart

• To exchange nutrients and gases with tissues

• To store blood

• To regulate blood pressure