Blood Vessels

What is/are the function of the arteries

• Carry blood away from the heart

• Carry blood to the heart

• Carry oxygen-rich blood

• Carry oxygen-poor blood

What is/are the function of veins?

• Carry blood away from the heart

• Carry blood to heart

• Carry oxygen-rich blood

• Carry oxygen-poor blood

Blood flows around our body in tubes called blood ________

The one-cell thick blood vessels are called:

Exchange of useful and unwanted substances take place through the finest tubes called

• Arteries

• Veins

• Capillaries

• Heart

Why is it important for capillaries to have thin walls of only one-cell thick?

• To allow exchange of materials slowly

• To prevent exchange of materials

• To allow exchange of materials efficiently

What is A, B, C?

• A: Artery
  B: Vein

  C: Capillary

• A: Vein

  B: Capillary

  C: Artery

• A: Artery

  B: Capillary

  C: Vein

• A: Capillary

  B: Vein

  A: Artery