Circulation of Blood Quiz

What is the real colour of deoxygenated blood?

• Blue

• Dark red

• Yellow

• Bright red

What is the main difference between arteries and veins?

• Arteries carry blood to the heart, veins carry blood away

• Arteries have thicker walls than veins

• Veins have thicker walls than arteries

• Arteries and veins have the same structure

Which type of blood do most arteries (other than the pulmonary artery) carry?

• Deoxygenated blood

• Oxygenated blood

• Mixed blood

• Carbonated blood

Where are capillaries located in the circulatory system?

• Between arteries and veins

• Inside the heart

• Only in the lungs

• Only in the brain

What is the function of the tunica media in blood vessels?

• Provides elasticity

• Contains smooth muscle

• Acts as a barrier

• Stores nutrients

The vessels with the highest blood pressure are:

• Veins

• Venules

• Capillaries

• Arteries

Valves prevent backflow in which vessel:

• Veins

• Capillaries

• Arterioles

• Arteries

Deoxygenated blood from the spleen and intestines carrying unwanted or harmful materials enters the liver via the:

• Hepatic Vein

• Hepatic Portal Vein

• Hepatic Capillaries

• Hepatic Artery

The reason capillaries only have one layer of endothelial cells:

• Because they're on a diet

• For gas and nutrient exchange with tissues and alveoli

• To make the lumen as large as possible

• So the blood can leak out