Circulatory System: Blood Vessels

Match the following

• exchange of gases

• veins

  
  

• carry blood away from the heart

• arteries

• carry deoxygenated blood

• capillaries

• prevent backflow of blood

• valves

Match the following

• lumen

•  hollow core surrounded by 3 layers of tissue

• Tunica intima

• Innermost layer of blood vessel

• Tunica media

• Outermost layer of blood vessel

• Tunica externa

• Middle layer of blood vessel

What are the three different types of vessels of the circulatory system?

Which blood vessel carries oxygenated blood to all parts of the body?

• veins

• capillaries

• aorta

• pulmonary artery

What path does blood take through the body?

• arteries-arterioles-capillaries-venules-veins

• arterioles-capillaries-arteries-veins-venules

• venules-veins-capillaries-arteries-arterioles

• veins-venules-capillaries-arterioles-arteries

label

a

b

c

d

valve

capillary

artery

vein

Label

a

b

c

d

lumen

tunica interna

tunica externa

tunica media

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

• 
  To regulate blood pressure

• 
  To transport oxygen to the body

• To carry deoxygenated blood back to the heart.

  
  

• To pump blood to the lungs

Which blood vessels carry oxygen-rich blood away from the heart?

• arteries

• capillaries

• lymphatic vessels

• veins

What is the smallest type of blood vessel in the body?

• lymphatic vessels

• arteries

• veins

• capillaries