Circulatory System Quiz

What is the function of arteries in the circulatory system?

• To carry blood to the heart

• To carry blood away from the heart

• To prevent backflow of blood

• To form a network between arteries and veins

What do veins do in the circulatory system?

• Carry blood away from the heart

• Form a network between arteries and veins

• Prevent backflow of blood

• Carry blood back to the heart

What is the role of valves in the veins?

• To carry blood away from the heart

• To carry blood back to the heart

• To prevent backflow of blood

• To form a network between arteries and veins

Capillaries are described as:

• Large vessels that carry blood away from the heart

• Large vessels that carry blood back to the heart

• Small vessels that prevent backflow of blood

• Small vessels that form a network between arteries and veins

What is the central blood-containing space of an artery or vein called?

• Tunica intima

• Tunica media

• Tunica adventitia

• Lumen

Capillaries are composed of how many layers of cells?

• One

• Two

• Three

• Four

What type of cells make up the single layer in capillaries?

• Muscle cells

• Endothelial cells

• Epithelial cells

• Nerve cells

What type of blood vessel is labeled as "Capillary" in the diagram?

• A vessel where blood is oxygenated

• A large vessel that carries blood away from the heart

• A small vessel where exchange of substances occurs

• A vessel that carries blood towards the heart

Which blood vessel carries blood away from the heart?

• Capillary

• Vein

• Artery

• Aorta

Which blood vessel carries blood towards the heart?

• Artery

• Capillary

• Vein

• Ventricle