Understanding Blood Vessels Quiz

What is the main function of blood in the body?

• To carry food

• To supply oxygen and nutrients

• To make you tired

• To create energy

Which blood vessel takes blood away from the heart?

• Capillary

• Vein

• Artery

• Venule

What is the biggest artery in the heart called?

• Pulmonary artery

• Aorta

• Venacava

• Coronary artery

What is the role of capillaries?

• To transport blood only

• To exchange materials between blood and cells

• To only carry oxygen

• To store blood

Which blood vessel carries deoxygenated blood back to the heart?

• Artery

• Capillary

• Vein

• Arteriole

How thick are the walls of capillaries?

• One cell thick

• Very thick

• Two cells thick

• Three cells thick

What do veins have to help prevent blood from flowing backward?

• Thick walls

• Valves

• Narrow lumens

• High pressure

Where are capillaries located in the body?

• Only in the heart

• Between arteries and veins

• Only in the lungs

• Only in the stomach

What type of blood do arteries carry?

• Deoxygenated blood

• Oxygenated blood

• Dirty blood

• Clean blood

What connects the capillaries to the veins?

• Arterioles

• Valves

• Venules

• Arteries